79234621 has 6 divisors (see below), whose sum is σ = 80958590. Its totient is φ = 77546616.

The previous prime is 79234567. The next prime is 79234633. The reversal of 79234621 is 12643297.

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 1988100 = 8789^2 + 1410^2 .

It is not a de Polignac number, because 79234621 - 2²⁵ = 45680189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79234021) 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 5 ways as a sum of consecutive naturals, for example, 15726 + ... + 20143.

Almost surely, 2^79234621 is an apocalyptic number.

It is an amenable number.

79234621 is a deficient number, since it is larger than the sum of its proper divisors (1723969).

79234621 is an equidigital number, since it uses as much as digits as its factorization.

79234621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35963 (or 35916 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 79234621 is about 8901.3830947780. The cubic root of 79234621 is about 429.5083997900.

It can be divided in two parts, 7923 and 4621, that added together give a square (12544 = 112²).

The spelling of 79234621 in words is "seventy-nine million, two hundred thirty-four thousand, six hundred twenty-one".