86776865 has 16 divisors (see below), whose sum is σ = 119266560. Its totient is φ = 59375040.

The previous prime is 86776841. The next prime is 86776867. The reversal of 86776865 is 56867768.

It is not a de Polignac number, because 86776865 - 2⁸ = 86776609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86776867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15380 + ... + 20250.

It is an arithmetic number, because the mean of its divisors is an integer number (7454160).

Almost surely, 2^86776865 is an apocalyptic number.

It is an amenable number.

86776865 is a deficient number, since it is larger than the sum of its proper divisors (32489695).

86776865 is a wasteful number, since it uses less digits than its factorization.

86776865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392.

The product of its digits is 3386880, while the sum is 53.

The square root of 86776865 is about 9315.4100822240. The cubic root of 86776865 is about 442.7256172272.

The spelling of 86776865 in words is "eighty-six million, seven hundred seventy-six thousand, eight hundred sixty-five".