79379776 has 56 divisors (see below), whose sum is σ = 181270656. Its totient is φ = 33784320.

The previous prime is 79379761. The next prime is 79379779. The reversal of 79379776 is 67797397.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×79379776² = 12602297675620352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79379779) 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 in 7 ways as a sum of consecutive naturals, for example, 74286 + ... + 75346.

It is an arithmetic number, because the mean of its divisors is an integer number (3236976).

Almost surely, 2^79379776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79379776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90635328).

79379776 is an abundant number, since it is smaller than the sum of its proper divisors (101890880).

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

79379776 is a wasteful number, since it uses less digits than its factorization.

79379776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1237 counting only the distinct ones).

The product of its digits is 3500658, while the sum is 55.

The square root of 79379776 is about 8909.5328721544. The cubic root of 79379776 is about 429.7705211465.

The spelling of 79379776 in words is "seventy-nine million, three hundred seventy-nine thousand, seven hundred seventy-six".