99904412 has 6 divisors (see below), whose sum is σ = 174832728. Its totient is φ = 49952204.

The previous prime is 99904411. The next prime is 99904439. The reversal of 99904412 is 21440999.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99904411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12488048 + ... + 12488055.

It is an arithmetic number, because the mean of its divisors is an integer number (29138788).

Almost surely, 2^99904412 is an apocalyptic number.

It is an amenable number.

99904412 is a deficient number, since it is larger than the sum of its proper divisors (74928316).

99904412 is a wasteful number, since it uses less digits than its factorization.

99904412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24976107 (or 24976105 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 99904412 is about 9995.2194573206. The cubic root of 99904412 is about 464.0109428156.

The spelling of 99904412 in words is "ninety-nine million, nine hundred four thousand, four hundred twelve".