47047045 has 4 divisors (see below), whose sum is σ = 56456460. Its totient is φ = 37637632.

The previous prime is 47047027. The next prime is 47047067. The reversal of 47047045 is 54074074.

47047045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54074074 = 2 ⋅27037037.

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 39212644 = 2799^2 + 6262^2 .

It is a cyclic number.

It is not a de Polignac number, because 47047045 - 2⁷ = 47046917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47046998 and 47047016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4704700 + ... + 4704709.

It is an arithmetic number, because the mean of its divisors is an integer number (14114115).

Almost surely, 2^47047045 is an apocalyptic number.

It is an amenable number.

47047045 is a deficient number, since it is larger than the sum of its proper divisors (9409415).

47047045 is an equidigital number, since it uses as much as digits as its factorization.

47047045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409414.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 47047045 is about 6859.0848514944. The cubic root of 47047045 is about 361.0029772393.

The spelling of 47047045 in words is "forty-seven million, forty-seven thousand, forty-five".