99686718 has 24 divisors (see below), whose sum is σ = 220585248. Its totient is φ = 32521632.

The previous prime is 99686689. The next prime is 99686723. The reversal of 99686718 is 81768699.

It is a super-2 number, since 2×99686718² = 19874883491223048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58071 + ... + 59762.

It is an arithmetic number, because the mean of its divisors is an integer number (9191052).

Almost surely, 2^99686718 is an apocalyptic number.

99686718 is an abundant number, since it is smaller than the sum of its proper divisors (120898530).

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

99686718 is a wasteful number, since it uses less digits than its factorization.

99686718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117888 (or 117885 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 99686718 is about 9984.3236125438. The cubic root of 99686718 is about 463.6736675657.

The spelling of 99686718 in words is "ninety-nine million, six hundred eighty-six thousand, seven hundred eighteen".