47345737 has 4 divisors (see below), whose sum is σ = 47359620. Its totient is φ = 47331856.

The previous prime is 47345729. The next prime is 47345741. The reversal of 47345737 is 73754374.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20967241 + 26378496 = 4579^2 + 5136^2 .

It is a cyclic number.

It is not a de Polignac number, because 47345737 - 2³ = 47345729 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47345737.

It is not an unprimeable number, because it can be changed into a prime (47345717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103 + ... + 9955.

It is an arithmetic number, because the mean of its divisors is an integer number (11839905).

Almost surely, 2^47345737 is an apocalyptic number.

It is an amenable number.

47345737 is a deficient number, since it is larger than the sum of its proper divisors (13883).

47345737 is an equidigital number, since it uses as much as digits as its factorization.

47345737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882.

The product of its digits is 246960, while the sum is 40.

The square root of 47345737 is about 6880.8238605562. The cubic root of 47345737 is about 361.7653439914.

It can be divided in two parts, 4734573 and 7, that multiplied together give a triangular number (33142011 = T₈₁₄₁).

The spelling of 47345737 in words is "forty-seven million, three hundred forty-five thousand, seven hundred thirty-seven".