865420882 has 16 divisors (see below), whose sum is σ = 1305172440. Its totient is φ = 430369408.

The previous prime is 865420877. The next prime is 865420883. The reversal of 865420882 is 288024568.

It can be written as a sum of positive squares in 4 ways, for example, as 771117361 + 94303521 = 27769^2 + 9711^2 .

It is not an unprimeable number, because it can be changed into a prime (865420883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460128 + ... + 462004.

Almost surely, 2^865420882 is an apocalyptic number.

865420882 is a deficient number, since it is larger than the sum of its proper divisors (439751558).

865420882 is a wasteful number, since it uses less digits than its factorization.

865420882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 865420882 is about 29418.0366782014. The cubic root of 865420882 is about 952.9624539321.

The spelling of 865420882 in words is "eight hundred sixty-five million, four hundred twenty thousand, eight hundred eighty-two".