79421392 has 40 divisors (see below), whose sum is σ = 162150336. Its totient is φ = 37610496.

The previous prime is 79421357. The next prime is 79421393. The reversal of 79421392 is 29312497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79421393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38368 + ... + 40384.

Almost surely, 2^79421392 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 79421392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81075168).

79421392 is an abundant number, since it is smaller than the sum of its proper divisors (82728944).

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

79421392 is a wasteful number, since it uses less digits than its factorization.

79421392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2149 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 79421392 is about 8911.8680421110. The cubic root of 79421392 is about 429.8456125039.

The spelling of 79421392 in words is "seventy-nine million, four hundred twenty-one thousand, three hundred ninety-two".