87476865 has 32 divisors (see below), whose sum is σ = 160807680. Its totient is φ = 39777024.

The previous prime is 87476863. The next prime is 87476891. The reversal of 87476865 is 56867478.

It is not a de Polignac number, because 87476865 - 2¹ = 87476863 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87476861) 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, 18571 + ... + 22799.

It is an arithmetic number, because the mean of its divisors is an integer number (5025240).

Almost surely, 2^87476865 is an apocalyptic number.

It is an amenable number.

87476865 is a deficient number, since it is larger than the sum of its proper divisors (73330815).

87476865 is a wasteful number, since it uses less digits than its factorization.

87476865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

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

The square root of 87476865 is about 9352.9067674173. The cubic root of 87476865 is about 443.9128704527.

The spelling of 87476865 in words is "eighty-seven million, four hundred seventy-six thousand, eight hundred sixty-five".