47113857 has 12 divisors (see below), whose sum is σ = 77775360. Its totient is φ = 26922168.

The previous prime is 47113849. The next prime is 47113861. The reversal of 47113857 is 75831174.

47113857 is a `hidden beast` number, since 471 + 138 + 57 = 666.

47113857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47113857 - 2³ = 47113849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47113837) 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 11 ways as a sum of consecutive naturals, for example, 373857 + ... + 373982.

It is an arithmetic number, because the mean of its divisors is an integer number (6481280).

Almost surely, 2^47113857 is an apocalyptic number.

It is an amenable number.

47113857 is a deficient number, since it is larger than the sum of its proper divisors (30661503).

47113857 is a wasteful number, since it uses less digits than its factorization.

47113857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747852 (or 747849 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 47113857 is about 6863.9534526394. The cubic root of 47113857 is about 361.1737844426.

The spelling of 47113857 in words is "forty-seven million, one hundred thirteen thousand, eight hundred fifty-seven".