47786865 has 32 divisors (see below), whose sum is σ = 87859200. Its totient is φ = 21726144.

The previous prime is 47786807. The next prime is 47786887. The reversal of 47786865 is 56868774.

It is not a de Polignac number, because 47786865 - 2⁷ = 47786737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19752 + ... + 22038.

It is an arithmetic number, because the mean of its divisors is an integer number (2745600).

Almost surely, 2^47786865 is an apocalyptic number.

It is an amenable number.

47786865 is a deficient number, since it is larger than the sum of its proper divisors (40072335).

47786865 is a wasteful number, since it uses less digits than its factorization.

47786865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501.

The product of its digits is 2257920, while the sum is 51.

The square root of 47786865 is about 6912.8044236764. The cubic root of 47786865 is about 362.8854148882.

The spelling of 47786865 in words is "forty-seven million, seven hundred eighty-six thousand, eight hundred sixty-five".