79985384 has 8 divisors (see below), whose sum is σ = 149972610. Its totient is φ = 39992688.

The previous prime is 79985359. The next prime is 79985419. The reversal of 79985384 is 48358997.

It can be written as a sum of positive squares in only one way, i.e., 55204900 + 24780484 = 7430^2 + 4978^2 .

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

It is an unprimeable number.

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, 4999079 + ... + 4999094.

Almost surely, 2^79985384 is an apocalyptic number.

It is an amenable number.

79985384 is a deficient number, since it is larger than the sum of its proper divisors (69987226).

79985384 is a wasteful number, since it uses less digits than its factorization.

79985384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9998179 (or 9998175 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 79985384 is about 8943.4548134376. The cubic root of 79985384 is about 430.8606953936.

The spelling of 79985384 in words is "seventy-nine million, nine hundred eighty-five thousand, three hundred eighty-four".