86718572 has 12 divisors (see below), whose sum is σ = 154986720. Its totient is φ = 42436656.

The previous prime is 86718571. The next prime is 86718587. The reversal of 86718572 is 27581768.

It is a super-2 number, since 2×86718572² = 15040221459438368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86718571) 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 3 ways as a sum of consecutive naturals, for example, 230447 + ... + 230822.

It is an arithmetic number, because the mean of its divisors is an integer number (12915560).

Almost surely, 2^86718572 is an apocalyptic number.

It is an amenable number.

86718572 is a deficient number, since it is larger than the sum of its proper divisors (68268148).

86718572 is a wasteful number, since it uses less digits than its factorization.

86718572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461320 (or 461318 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 86718572 is about 9312.2807088275. The cubic root of 86718572 is about 442.6264602863.

The spelling of 86718572 in words is "eighty-six million, seven hundred eighteen thousand, five hundred seventy-two".