79321420 has 24 divisors (see below), whose sum is σ = 166905648. Its totient is φ = 31665600.

The previous prime is 79321397. The next prime is 79321423. The reversal of 79321420 is 2412397.

It is not an unprimeable number, because it can be changed into a prime (79321423) 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, 7155 + ... + 14485.

It is an arithmetic number, because the mean of its divisors is an integer number (6954402).

Almost surely, 2^79321420 is an apocalyptic number.

It is an amenable number.

79321420 is an abundant number, since it is smaller than the sum of its proper divisors (87584228).

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

79321420 is a wasteful number, since it uses less digits than its factorization.

79321420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881 (or 7879 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 79321420 is about 8906.2573508742. The cubic root of 79321420 is about 429.6651801387.

The spelling of 79321420 in words is "seventy-nine million, three hundred twenty-one thousand, four hundred twenty".