99878995 has 32 divisors (see below), whose sum is σ = 135364608. Its totient is φ = 70338048.

The previous prime is 99878983. The next prime is 99879011. The reversal of 99878995 is 59987899.

It is a de Polignac number, because none of the positive numbers 2^k-99878995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91342 + ... + 92428.

It is an arithmetic number, because the mean of its divisors is an integer number (4230144).

Almost surely, 2^99878995 is an apocalyptic number.

99878995 is a deficient number, since it is larger than the sum of its proper divisors (35485613).

99878995 is a wasteful number, since it uses less digits than its factorization.

99878995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179.

The product of its digits is 14696640, while the sum is 64.

The square root of 99878995 is about 9993.9479186155. The cubic root of 99878995 is about 463.9715893103.

The spelling of 99878995 in words is "ninety-nine million, eight hundred seventy-eight thousand, nine hundred ninety-five".