86981316 has 48 divisors (see below), whose sum is σ = 226215360. Its totient is φ = 25850880.

The previous prime is 86981309. The next prime is 86981317. The reversal of 86981316 is 61318968.

It is not an unprimeable number, because it can be changed into a prime (86981317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7345 + ... + 15096.

It is an arithmetic number, because the mean of its divisors is an integer number (4712820).

Almost surely, 2^86981316 is an apocalyptic number.

It is an amenable number.

86981316 is an abundant number, since it is smaller than the sum of its proper divisors (139234044).

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

86981316 is a wasteful number, since it uses less digits than its factorization.

86981316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22484 (or 22482 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 86981316 is about 9326.3774317792. The cubic root of 86981316 is about 443.0730397092.

The spelling of 86981316 in words is "eighty-six million, nine hundred eighty-one thousand, three hundred sixteen".