99379578 has 16 divisors (see below), whose sum is σ = 205613280. Its totient is φ = 31984176.

The previous prime is 99379561. The next prime is 99379589. The reversal of 99379578 is 87597399.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285400 + ... + 285747.

It is an arithmetic number, because the mean of its divisors is an integer number (12850830).

Almost surely, 2^99379578 is an apocalyptic number.

99379578 is an abundant number, since it is smaller than the sum of its proper divisors (106233702).

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

99379578 is a wasteful number, since it uses less digits than its factorization.

99379578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571181.

The product of its digits is 4286520, while the sum is 57.

The square root of 99379578 is about 9968.9306347271. The cubic root of 99379578 is about 463.1969767075.

The spelling of 99379578 in words is "ninety-nine million, three hundred seventy-nine thousand, five hundred seventy-eight".