79139336 has 8 divisors (see below), whose sum is σ = 148386270. Its totient is φ = 39569664.

The previous prime is 79139309. The next prime is 79139363. The reversal of 79139336 is 63393197.

It is an interprime number because it is at equal distance from previous prime (79139309) and next prime (79139363).

It can be written as a sum of positive squares in only one way, i.e., 79103236 + 36100 = 8894^2 + 190^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 79139293 and 79139302.

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 as a sum of consecutive naturals, namely, 4946201 + ... + 4946216.

Almost surely, 2^79139336 is an apocalyptic number.

It is an amenable number.

79139336 is a deficient number, since it is larger than the sum of its proper divisors (69246934).

79139336 is a wasteful number, since it uses less digits than its factorization.

79139336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892423 (or 9892419 counting only the distinct ones).

The product of its digits is 91854, while the sum is 41.

The square root of 79139336 is about 8896.0292265707. The cubic root of 79139336 is about 429.3361597446.

The spelling of 79139336 in words is "seventy-nine million, one hundred thirty-nine thousand, three hundred thirty-six".