79928984 has 8 divisors (see below), whose sum is σ = 149866860. Its totient is φ = 39964488.

The previous prime is 79928983. The next prime is 79929037. The reversal of 79928984 is 48982997.

It is a happy number.

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 (79928983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995554 + ... + 4995569.

Almost surely, 2^79928984 is an apocalyptic number.

It is an amenable number.

79928984 is a deficient number, since it is larger than the sum of its proper divisors (69937876).

79928984 is a wasteful number, since it uses less digits than its factorization.

79928984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991129 (or 9991125 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 79928984 is about 8940.3011134972. The cubic root of 79928984 is about 430.7594008157.

The spelling of 79928984 in words is "seventy-nine million, nine hundred twenty-eight thousand, nine hundred eighty-four".