86143980 has 48 divisors (see below), whose sum is σ = 259759584. Its totient is φ = 21204480.

The previous prime is 86143961. The next prime is 86144021. The reversal of 86143980 is 8934168.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54441 + ... + 56000.

It is an arithmetic number, because the mean of its divisors is an integer number (5411658).

Almost surely, 2^86143980 is an apocalyptic number.

It is an amenable number.

86143980 is an abundant number, since it is smaller than the sum of its proper divisors (173615604).

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

86143980 is a wasteful number, since it uses less digits than its factorization.

86143980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110466 (or 110464 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 86143980 is about 9281.3781304287. The cubic root of 86143980 is about 441.6466877557.

The spelling of 86143980 in words is "eighty-six million, one hundred forty-three thousand, nine hundred eighty".