86604720 has 40 divisors (see below), whose sum is σ = 268475376. Its totient is φ = 23094528.

The previous prime is 86604719. The next prime is 86604733. The reversal of 86604720 is 2740668.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180187 + ... + 180666.

Almost surely, 2^86604720 is an apocalyptic number.

86604720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86604720 is an abundant number, since it is smaller than the sum of its proper divisors (181870656).

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

86604720 is a wasteful number, since it uses less digits than its factorization.

86604720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360869 (or 360863 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 86604720 is about 9306.1656980735. The cubic root of 86604720 is about 442.4326687428.

The spelling of 86604720 in words is "eighty-six million, six hundred four thousand, seven hundred twenty".