99904394 has 16 divisors (see below), whose sum is σ = 161414880. Its totient is φ = 46221840.

The previous prime is 99904367. The next prime is 99904411. The reversal of 99904394 is 49340999.

It is a happy number.

It is a Curzon number.

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, 28937 + ... + 32204.

It is an arithmetic number, because the mean of its divisors is an integer number (10088430).

Almost surely, 2^99904394 is an apocalyptic number.

99904394 is a deficient number, since it is larger than the sum of its proper divisors (61510486).

99904394 is a wasteful number, since it uses less digits than its factorization.

99904394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61205.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 99904394 is about 9995.2185568901. The cubic root of 99904394 is about 464.0109149484.

The spelling of 99904394 in words is "ninety-nine million, nine hundred four thousand, three hundred ninety-four".