99077985 has 20 divisors (see below), whose sum is σ = 177607188. Its totient is φ = 52841376.

The previous prime is 99077939. The next prime is 99077987. The reversal of 99077985 is 58977099.

It can be written as a sum of positive squares in 2 ways, for example, as 19368801 + 79709184 = 4401^2 + 8928^2 .

It is not a de Polignac number, because 99077985 - 2⁷ = 99077857 is a prime.

It is a super-2 number, since 2×99077985² = 19632894223320450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99077987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 121914 + ... + 122723.

Almost surely, 2^99077985 is an apocalyptic number.

It is an amenable number.

99077985 is a deficient number, since it is larger than the sum of its proper divisors (78529203).

99077985 is a wasteful number, since it uses less digits than its factorization.

99077985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244654 (or 244645 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 99077985 is about 9953.7924933163. The cubic root of 99077985 is about 462.7279382898.

The spelling of 99077985 in words is "ninety-nine million, seventy-seven thousand, nine hundred eighty-five".