47540857 has 32 divisors (see below), whose sum is σ = 62899200. Its totient is φ = 34864128.

The previous prime is 47540851. The next prime is 47540861. The reversal of 47540857 is 75804574.

It is not a de Polignac number, because 47540857 - 2¹¹ = 47538809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47540851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122019 + ... + 122407.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^47540857 is an apocalyptic number.

It is an amenable number.

47540857 is a deficient number, since it is larger than the sum of its proper divisors (15358343).

47540857 is a wasteful number, since it uses less digits than its factorization.

47540857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 47540857 is about 6894.9878172481. The cubic root of 47540857 is about 362.2616287807.

The spelling of 47540857 in words is "forty-seven million, five hundred forty thousand, eight hundred fifty-seven".