99904401 has 16 divisors (see below), whose sum is σ = 148408320. Its totient is φ = 66422160.

The previous prime is 99904367. The next prime is 99904411. The reversal of 99904401 is 10440999.

It is not a de Polignac number, because 99904401 - 2¹⁵ = 99871633 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 5511 + ... + 15171.

It is an arithmetic number, because the mean of its divisors is an integer number (9275520).

Almost surely, 2^99904401 is an apocalyptic number.

It is an amenable number.

99904401 is a deficient number, since it is larger than the sum of its proper divisors (48503919).

99904401 is a wasteful number, since it uses less digits than its factorization.

99904401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053 (or 10047 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 99904401 is about 9995.2189070575. The cubic root of 99904401 is about 464.0109257856.

The spelling of 99904401 in words is "ninety-nine million, nine hundred four thousand, four hundred one".