999994904 has 8 divisors (see below), whose sum is σ = 1874990460. Its totient is φ = 499997448.

The previous prime is 999994903. The next prime is 999994913. The reversal of 999994904 is 409499999.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999994903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62499674 + ... + 62499689.

Almost surely, 2^999994904 is an apocalyptic number.

It is an amenable number.

999994904 is a deficient number, since it is larger than the sum of its proper divisors (874995556).

999994904 is a wasteful number, since it uses less digits than its factorization.

999994904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124999369 (or 124999365 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 62.

The square root of 999994904 is about 31622.6960267464. The cubic root of 999994904 is about 999.9983013304.

The spelling of 999994904 in words is "nine hundred ninety-nine million, nine hundred ninety-four thousand, nine hundred four".