86501980 has 12 divisors (see below), whose sum is σ = 181654200. Its totient is φ = 34600784.

The previous prime is 86501971. The next prime is 86501999. The reversal of 86501980 is 8910568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162530 + ... + 2162569.

It is an arithmetic number, because the mean of its divisors is an integer number (15137850).

Almost surely, 2^86501980 is an apocalyptic number.

It is an amenable number.

86501980 is an abundant number, since it is smaller than the sum of its proper divisors (95152220).

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

86501980 is a wasteful number, since it uses less digits than its factorization.

86501980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325108 (or 4325106 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 86501980 is about 9300.6440637195. The cubic root of 86501980 is about 442.2576454915.

The spelling of 86501980 in words is "eighty-six million, five hundred one thousand, nine hundred eighty".