79994388 has 24 divisors (see below), whose sum is σ = 186852960. Its totient is φ = 26636320.

The previous prime is 79994371. The next prime is 79994399. The reversal of 79994388 is 88349997.

It is a super-2 number, since 2×79994388² = 12798204222989088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10303 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (7785540).

Almost surely, 2^79994388 is an apocalyptic number.

It is an amenable number.

79994388 is an abundant number, since it is smaller than the sum of its proper divisors (106858572).

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

79994388 is a wasteful number, since it uses less digits than its factorization.

79994388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127 (or 7125 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 79994388 is about 8943.9581841599. The cubic root of 79994388 is about 430.8768621979.

The spelling of 79994388 in words is "seventy-nine million, nine hundred ninety-four thousand, three hundred eighty-eight".