99397902 has 16 divisors (see below), whose sum is σ = 198893520. Its totient is φ = 33116352.

The previous prime is 99397901. The next prime is 99397931. The reversal of 99397902 is 20979399.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99397901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21858 + ... + 26010.

It is an arithmetic number, because the mean of its divisors is an integer number (12430845).

Almost surely, 2^99397902 is an apocalyptic number.

99397902 is an abundant number, since it is smaller than the sum of its proper divisors (99495618).

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

99397902 is a wasteful number, since it uses less digits than its factorization.

99397902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8147.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 99397902 is about 9969.8496478132. The cubic root of 99397902 is about 463.2254436553.

Adding to 99397902 its sum of digits (48), we get a triangular number (99397950 = T₁₄₀₉₉).

The spelling of 99397902 in words is "ninety-nine million, three hundred ninety-seven thousand, nine hundred two".