99587885 has 16 divisors (see below), whose sum is σ = 125031600. Its totient is φ = 76048896.

The previous prime is 99587879. The next prime is 99587933. The reversal of 99587885 is 58878599.

It can be written as a sum of positive squares in 8 ways, for example, as 5148361 + 94439524 = 2269^2 + 9718^2 .

It is a cyclic number.

It is not a de Polignac number, because 99587885 - 2²⁴ = 82810669 is a prime.

It is a congruent number.

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, 9047 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (7814475).

Almost surely, 2^99587885 is an apocalyptic number.

It is an amenable number.

99587885 is a deficient number, since it is larger than the sum of its proper divisors (25443715).

99587885 is a wasteful number, since it uses less digits than its factorization.

99587885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7840.

The product of its digits is 7257600, while the sum is 59.

The square root of 99587885 is about 9979.3729762947. The cubic root of 99587885 is about 463.5203826432.

The spelling of 99587885 in words is "ninety-nine million, five hundred eighty-seven thousand, eight hundred eighty-five".