86645156 has 24 divisors (see below), whose sum is σ = 168926520. Its totient is φ = 38610432.

The previous prime is 86645113. The next prime is 86645161. The reversal of 86645156 is 65154668.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9205156 + 77440000 = 3034^2 + 8800^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27221 + ... + 30236.

It is an arithmetic number, because the mean of its divisors is an integer number (7038605).

Almost surely, 2^86645156 is an apocalyptic number.

It is an amenable number.

86645156 is a deficient number, since it is larger than the sum of its proper divisors (82281364).

86645156 is a wasteful number, since it uses less digits than its factorization.

86645156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57503 (or 57501 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 86645156 is about 9308.3379826906. The cubic root of 86645156 is about 442.5015157363.

The spelling of 86645156 in words is "eighty-six million, six hundred forty-five thousand, one hundred fifty-six".