79879838 has 16 divisors (see below), whose sum is σ = 133546320. Its totient is φ = 35611776.

The previous prime is 79879831. The next prime is 79879843. The reversal of 79879838 is 83897897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79879831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61181 + ... + 62472.

It is an arithmetic number, because the mean of its divisors is an integer number (8346645).

Almost surely, 2^79879838 is an apocalyptic number.

79879838 is a deficient number, since it is larger than the sum of its proper divisors (53666482).

79879838 is a wasteful number, since it uses less digits than its factorization.

79879838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123691.

The product of its digits is 6096384, while the sum is 59.

The square root of 79879838 is about 8937.5521257221. The cubic root of 79879838 is about 430.6710955857.

The spelling of 79879838 in words is "seventy-nine million, eight hundred seventy-nine thousand, eight hundred thirty-eight".