86631768 has 40 divisors (see below), whose sum is σ = 242650980. Its totient is φ = 28877040.

The previous prime is 86631761. The next prime is 86631781. The reversal of 86631768 is 86713668.

86631768 is a `hidden beast` number, since 8 + 6 + 631 + 7 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86631761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 66198 + ... + 67493.

Almost surely, 2^86631768 is an apocalyptic number.

It is an amenable number.

86631768 is an abundant number, since it is smaller than the sum of its proper divisors (156019212).

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

86631768 is a wasteful number, since it uses less digits than its factorization.

86631768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133709 (or 133696 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86631768 is about 9307.6188147130. The cubic root of 86631768 is about 442.4787234814.

The spelling of 86631768 in words is "eighty-six million, six hundred thirty-one thousand, seven hundred sixty-eight".