79441321 has 2 divisors, whose sum is σ = 79441322. Its totient is φ = 79441320.

The previous prime is 79441303. The next prime is 79441343. The reversal of 79441321 is 12314497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 4791721 = 8640^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 79441321 - 2¹⁷ = 79310249 is a prime.

It is equal to p_4638730 and since 79441321 and 4638730 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (79441381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39720660 + 39720661.

It is an arithmetic number, because the mean of its divisors is an integer number (39720661).

Almost surely, 2^79441321 is an apocalyptic number.

It is an amenable number.

79441321 is a deficient number, since it is larger than the sum of its proper divisors (1).

79441321 is an equidigital number, since it uses as much as digits as its factorization.

79441321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 79441321 is about 8912.9860877262. The cubic root of 79441321 is about 429.8815628382.

The spelling of 79441321 in words is "seventy-nine million, four hundred forty-one thousand, three hundred twenty-one".