86676720 has 120 divisors (see below), whose sum is σ = 291092976. Its totient is φ = 21325824.

The previous prime is 86676703. The next prime is 86676731. The reversal of 86676720 is 2767668.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39492 + ... + 41628.

Almost surely, 2^86676720 is an apocalyptic number.

86676720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86676720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145546488).

86676720 is an abundant number, since it is smaller than the sum of its proper divisors (204416256).

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

86676720 is a wasteful number, since it uses less digits than its factorization.

86676720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 86676720 is about 9310.0332974700. The cubic root of 86676720 is about 442.5552422334. Note that the first 3 decimals are identical.

The spelling of 86676720 in words is "eighty-six million, six hundred seventy-six thousand, seven hundred twenty".