79439356 has 6 divisors (see below), whose sum is σ = 139018880. Its totient is φ = 39719676.

The previous prime is 79439341. The next prime is 79439357. The reversal of 79439356 is 65393497.

It is a super-2 number, since 2×79439356² = 12621222563389472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79439357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9929916 + ... + 9929923.

Almost surely, 2^79439356 is an apocalyptic number.

It is an amenable number.

79439356 is a deficient number, since it is larger than the sum of its proper divisors (59579524).

79439356 is a wasteful number, since it uses less digits than its factorization.

79439356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19859843 (or 19859841 counting only the distinct ones).

The product of its digits is 612360, while the sum is 46.

The square root of 79439356 is about 8912.8758546274. The cubic root of 79439356 is about 429.8780184014.

The spelling of 79439356 in words is "seventy-nine million, four hundred thirty-nine thousand, three hundred fifty-six".