99961804 has 12 divisors (see below), whose sum is σ = 175030744. Its totient is φ = 49953024.

The previous prime is 99961801. The next prime is 99961837. The reversal of 99961804 is 40816999.

It is not an unprimeable number, because it can be changed into a prime (99961801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2539 + ... + 14365.

Almost surely, 2^99961804 is an apocalyptic number.

It is an amenable number.

99961804 is a deficient number, since it is larger than the sum of its proper divisors (75068940).

99961804 is a wasteful number, since it uses less digits than its factorization.

99961804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944 (or 13942 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 99961804 is about 9998.0900175984. The cubic root of 99961804 is about 464.0997791265.

The spelling of 99961804 in words is "ninety-nine million, nine hundred sixty-one thousand, eight hundred four".