79046321 has 2 divisors, whose sum is σ = 79046322. Its totient is φ = 79046320.

The previous prime is 79046299. The next prime is 79046333. The reversal of 79046321 is 12364097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62236321 + 16810000 = 7889^2 + 4100^2 .

It is a cyclic number.

It is not a de Polignac number, because 79046321 - 2²² = 74852017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79046021) 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 as a sum of consecutive naturals, namely, 39523160 + 39523161.

It is an arithmetic number, because the mean of its divisors is an integer number (39523161).

Almost surely, 2^79046321 is an apocalyptic number.

It is an amenable number.

79046321 is a deficient number, since it is larger than the sum of its proper divisors (1).

79046321 is an equidigital number, since it uses as much as digits as its factorization.

79046321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 79046321 is about 8890.7997952940. The cubic root of 79046321 is about 429.1678896164.

The spelling of 79046321 in words is "seventy-nine million, forty-six thousand, three hundred twenty-one".