99317986 has 16 divisors (see below), whose sum is σ = 156084480. Its totient is φ = 47337840.

The previous prime is 99317983. The next prime is 99318041. The reversal of 99317986 is 68971399.

It is not an unprimeable number, because it can be changed into a prime (99317983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7801 + ... + 16108.

It is an arithmetic number, because the mean of its divisors is an integer number (9755280).

Almost surely, 2^99317986 is an apocalyptic number.

99317986 is a deficient number, since it is larger than the sum of its proper divisors (56766494).

99317986 is a wasteful number, since it uses less digits than its factorization.

99317986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24009.

The product of its digits is 734832, while the sum is 52.

The square root of 99317986 is about 9965.8409579925. The cubic root of 99317986 is about 463.1012658159.

The spelling of 99317986 in words is "ninety-nine million, three hundred seventeen thousand, nine hundred eighty-six".