79136338 has 4 divisors (see below), whose sum is σ = 118704510. Its totient is φ = 39568168.

The previous prime is 79136333. The next prime is 79136359. The reversal of 79136338 is 83363197.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59182249 + 19954089 = 7693^2 + 4467^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79136338.

It is not an unprimeable number, because it can be changed into a prime (79136333) 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, 19784083 + ... + 19784086.

Almost surely, 2^79136338 is an apocalyptic number.

79136338 is a deficient number, since it is larger than the sum of its proper divisors (39568172).

79136338 is a wasteful number, since it uses less digits than its factorization.

79136338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39568171.

The product of its digits is 81648, while the sum is 40.

The square root of 79136338 is about 8895.8607228306. The cubic root of 79136338 is about 429.3307382264.

The spelling of 79136338 in words is "seventy-nine million, one hundred thirty-six thousand, three hundred thirty-eight".