86864634 has 12 divisors (see below), whose sum is σ = 188206746. Its totient is φ = 28954872.

The previous prime is 86864627. The next prime is 86864653. The reversal of 86864634 is 43646868.

86864634 is a `hidden beast` number, since 8 + 6 + 8 + 6 + 4 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65658609 + 21206025 = 8103^2 + 4605^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86864634.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2412889 + ... + 2412924.

Almost surely, 2^86864634 is an apocalyptic number.

86864634 is an abundant number, since it is smaller than the sum of its proper divisors (101342112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86864634 is a wasteful number, since it uses less digits than its factorization.

86864634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825821 (or 4825818 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 86864634 is about 9320.1198490148. The cubic root of 86864634 is about 442.8748293913.

The spelling of 86864634 in words is "eighty-six million, eight hundred sixty-four thousand, six hundred thirty-four".