99161804 has 12 divisors (see below), whose sum is σ = 198323664. Its totient is φ = 42497904.

The previous prime is 99161791. The next prime is 99161819. The reversal of 99161804 is 40816199.

It is a happy number.

99161804 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770719 + ... + 1770774.

It is an arithmetic number, because the mean of its divisors is an integer number (16526972).

Almost surely, 2^99161804 is an apocalyptic number.

It is an amenable number.

99161804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99161804 is a wasteful number, since it uses less digits than its factorization.

99161804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541504 (or 3541502 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 99161804 is about 9958.0020084352. The cubic root of 99161804 is about 462.8583892702.

The spelling of 99161804 in words is "ninety-nine million, one hundred sixty-one thousand, eight hundred four".