99845915 has 16 divisors (see below), whose sum is σ = 129257856. Its totient is φ = 73603200.

The previous prime is 99845899. The next prime is 99845939. The reversal of 99845915 is 51954899.

It is not a de Polignac number, because 99845915 - 2⁴ = 99845899 is a prime.

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, 52430 + ... + 54300.

It is an arithmetic number, because the mean of its divisors is an integer number (8078616).

Almost surely, 2^99845915 is an apocalyptic number.

99845915 is a deficient number, since it is larger than the sum of its proper divisors (29411941).

99845915 is a wasteful number, since it uses less digits than its factorization.

99845915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710.

The product of its digits is 583200, while the sum is 50.

The square root of 99845915 is about 9992.2927799379. The cubic root of 99845915 is about 463.9203610718.

The spelling of 99845915 in words is "ninety-nine million, eight hundred forty-five thousand, nine hundred fifteen".