86691272 has 16 divisors (see below), whose sum is σ = 162994560. Its totient is φ = 43226064.

The previous prime is 86691257. The next prime is 86691277. The reversal of 86691272 is 27219668.

It is not an unprimeable number, because it can be changed into a prime (86691277) 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, 11828 + ... + 17699.

It is an arithmetic number, because the mean of its divisors is an integer number (10187160).

Almost surely, 2^86691272 is an apocalyptic number.

It is an amenable number.

86691272 is a deficient number, since it is larger than the sum of its proper divisors (76303288).

86691272 is a wasteful number, since it uses less digits than its factorization.

86691272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29900 (or 29896 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 86691272 is about 9310.8147871172. The cubic root of 86691272 is about 442.5800074511.

The spelling of 86691272 in words is "eighty-six million, six hundred ninety-one thousand, two hundred seventy-two".