99980364 has 72 divisors (see below), whose sum is σ = 263495344. Its totient is φ = 29462400.

The previous prime is 99980357. The next prime is 99980399. The reversal of 99980364 is 46308999.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52794 + ... + 54654.

Almost surely, 2^99980364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99980364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131747672).

99980364 is an abundant number, since it is smaller than the sum of its proper divisors (163514980).

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

99980364 is a wasteful number, since it uses less digits than its factorization.

99980364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 99980364 is about 9999.0181517987. The cubic root of 99980364 is about 464.1285006264.

The spelling of 99980364 in words is "ninety-nine million, nine hundred eighty thousand, three hundred sixty-four".