86678612 has 12 divisors (see below), whose sum is σ = 151761120. Its totient is φ = 43318296.

The previous prime is 86678609. The next prime is 86678617. The reversal of 86678612 is 21687668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86678617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7433 + ... + 15119.

It is an arithmetic number, because the mean of its divisors is an integer number (12646760).

Almost surely, 2^86678612 is an apocalyptic number.

It is an amenable number.

86678612 is a deficient number, since it is larger than the sum of its proper divisors (65082508).

86678612 is a wasteful number, since it uses less digits than its factorization.

86678612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510 (or 10508 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 86678612 is about 9310.1349077229. The cubic root of 86678612 is about 442.5584622769.

The spelling of 86678612 in words is "eighty-six million, six hundred seventy-eight thousand, six hundred twelve".