86977208 has 32 divisors (see below), whose sum is σ = 166212000. Its totient is φ = 42662400.

The previous prime is 86977207. The next prime is 86977211. The reversal of 86977208 is 80277968.

It is a super-2 number, since 2×86977208² = 15130069422950528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86977207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107108 + ... + 107916.

It is an arithmetic number, because the mean of its divisors is an integer number (5194125).

Almost surely, 2^86977208 is an apocalyptic number.

It is an amenable number.

86977208 is a deficient number, since it is larger than the sum of its proper divisors (79234792).

86977208 is a wasteful number, since it uses less digits than its factorization.

86977208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 86977208 is about 9326.1571936141. The cubic root of 86977208 is about 443.0660643694.

The spelling of 86977208 in words is "eighty-six million, nine hundred seventy-seven thousand, two hundred eight".