790081321 has 2 divisors, whose sum is σ = 790081322. Its totient is φ = 790081320.

The previous prime is 790081309. The next prime is 790081339. The reversal of 790081321 is 123180097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 636048400 + 154032921 = 25220^2 + 12411^2 .

It is a cyclic number.

It is not a de Polignac number, because 790081321 - 2¹¹ = 790079273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (790081301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395040660 + 395040661.

It is an arithmetic number, because the mean of its divisors is an integer number (395040661).

Almost surely, 2^790081321 is an apocalyptic number.

It is an amenable number.

790081321 is a deficient number, since it is larger than the sum of its proper divisors (1).

790081321 is an equidigital number, since it uses as much as digits as its factorization.

790081321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 790081321 is about 28108.3852435532. The cubic root of 790081321 is about 924.4652652217.

The spelling of 790081321 in words is "seven hundred ninety million, eighty-one thousand, three hundred twenty-one".