86712086 has 24 divisors (see below), whose sum is σ = 140024280. Its totient is φ = 40161312.

The previous prime is 86712071. The next prime is 86712091. The reversal of 86712086 is 68021768.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83426 + ... + 84458.

It is an arithmetic number, because the mean of its divisors is an integer number (5834345).

Almost surely, 2^86712086 is an apocalyptic number.

86712086 is a deficient number, since it is larger than the sum of its proper divisors (53312194).

86712086 is a wasteful number, since it uses less digits than its factorization.

86712086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 86712086 is about 9311.9324525042. The cubic root of 86712086 is about 442.6154247925.

The spelling of 86712086 in words is "eighty-six million, seven hundred twelve thousand, eighty-six".