86637028 has 6 divisors (see below), whose sum is σ = 151614806. Its totient is φ = 43318512.

The previous prime is 86636993. The next prime is 86637029. The reversal of 86637028 is 82073668.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68591524 + 18045504 = 8282^2 + 4248^2 .

It is not an unprimeable number, because it can be changed into a prime (86637029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10829625 + ... + 10829632.

Almost surely, 2^86637028 is an apocalyptic number.

It is an amenable number.

86637028 is a deficient number, since it is larger than the sum of its proper divisors (64977778).

86637028 is a wasteful number, since it uses less digits than its factorization.

86637028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21659261 (or 21659259 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 86637028 is about 9307.9013746386. The cubic root of 86637028 is about 442.4876785912.

The spelling of 86637028 in words is "eighty-six million, six hundred thirty-seven thousand, twenty-eight".