86725980 has 72 divisors (see below), whose sum is σ = 286990704. Its totient is φ = 21024000.

The previous prime is 86725931. The next prime is 86725987. The reversal of 86725980 is 8952768.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86725987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19921 + ... + 23880.

It is an arithmetic number, because the mean of its divisors is an integer number (3985982).

Almost surely, 2^86725980 is an apocalyptic number.

It is an amenable number.

86725980 is an abundant number, since it is smaller than the sum of its proper divisors (200264724).

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

86725980 is a wasteful number, since it uses less digits than its factorization.

86725980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43827 (or 43822 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 86725980 is about 9312.6784546660. The cubic root of 86725980 is about 442.6390638282.

The spelling of 86725980 in words is "eighty-six million, seven hundred twenty-five thousand, nine hundred eighty".