79332421 has 24 divisors (see below), whose sum is σ = 98594496. Its totient is φ = 63423360.

The previous prime is 79332419. The next prime is 79332433. The reversal of 79332421 is 12423397.

It is not a de Polignac number, because 79332421 - 2¹ = 79332419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79332401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108760 + ... + 109486.

It is an arithmetic number, because the mean of its divisors is an integer number (4108104).

Almost surely, 2^79332421 is an apocalyptic number.

It is an amenable number.

79332421 is a deficient number, since it is larger than the sum of its proper divisors (19262075).

79332421 is a wasteful number, since it uses less digits than its factorization.

79332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 882 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 79332421 is about 8906.8749289524. The cubic root of 79332421 is about 429.6850424834.

The spelling of 79332421 in words is "seventy-nine million, three hundred thirty-two thousand, four hundred twenty-one".