86678512 has 20 divisors (see below), whose sum is σ = 177818976. Its totient is φ = 40789760.

The previous prime is 86678507. The next prime is 86678519. The reversal of 86678512 is 21587668.

It is a super-3 number, since 3×86678512³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86678519) 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, 159064 + ... + 159607.

Almost surely, 2^86678512 is an apocalyptic number.

It is an amenable number.

86678512 is an abundant number, since it is smaller than the sum of its proper divisors (91140464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86678512 is a wasteful number, since it uses less digits than its factorization.

86678512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318696 (or 318690 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 86678512 is about 9310.1295372299. The cubic root of 86678512 is about 442.5582920855.

The spelling of 86678512 in words is "eighty-six million, six hundred seventy-eight thousand, five hundred twelve".