47342747 has 4 divisors (see below), whose sum is σ = 47384016. Its totient is φ = 47301480.

The previous prime is 47342719. The next prime is 47342753. The reversal of 47342747 is 74724374.

It is a happy number.

47342747 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.

It is a cyclic number.

It is not a de Polignac number, because 47342747 - 2⁶ = 47342683 is a prime.

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 47342747.

It is not an unprimeable number, because it can be changed into a prime (47342767) by changing a digit.

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, 18863 + ... + 21224.

It is an arithmetic number, because the mean of its divisors is an integer number (11846004).

Almost surely, 2^47342747 is an apocalyptic number.

47342747 is a deficient number, since it is larger than the sum of its proper divisors (41269).

47342747 is a wasteful number, since it uses less digits than its factorization.

47342747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41268.

The product of its digits is 131712, while the sum is 38.

The square root of 47342747 is about 6880.6065866317. The cubic root of 47342747 is about 361.7577283733.

The spelling of 47342747 in words is "forty-seven million, three hundred forty-two thousand, seven hundred forty-seven".