7998479604 has 18 divisors (see below), whose sum is σ = 20218379090. Its totient is φ = 2666159856.

The previous prime is 7998479597. The next prime is 7998479627. The reversal of 7998479604 is 4069748997.

7998479604 is a `hidden beast` number, since 79 + 98 + 479 + 6 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7439062500 + 559417104 = 86250^2 + 23652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111089959 + ... + 111090030.

Almost surely, 2^7998479604 is an apocalyptic number.

It is an amenable number.

7998479604 is an abundant number, since it is smaller than the sum of its proper divisors (12219899486).

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

7998479604 is a wasteful number, since it uses less digits than its factorization.

7998479604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222179999 (or 222179994 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The square root of 7998479604 is about 89434.2194241108. The cubic root of 7998479604 is about 1999.8732923061.

The spelling of 7998479604 in words is "seven billion, nine hundred ninety-eight million, four hundred seventy-nine thousand, six hundred four".