797962591 has 2 divisors, whose sum is σ = 797962592. Its totient is φ = 797962590.

The previous prime is 797962559. The next prime is 797962631. The reversal of 797962591 is 195269797.

It is a weak prime.

It is an emirp because it is prime and its reverse (195269797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 797962591 - 2⁵ = 797962559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797962511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398981295 + 398981296.

It is an arithmetic number, because the mean of its divisors is an integer number (398981296).

Almost surely, 2^797962591 is an apocalyptic number.

797962591 is a deficient number, since it is larger than the sum of its proper divisors (1).

797962591 is an equidigital number, since it uses as much as digits as its factorization.

797962591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 55.

The square root of 797962591 is about 28248.2316437684. The cubic root of 797962591 is about 927.5290288621.

The spelling of 797962591 in words is "seven hundred ninety-seven million, nine hundred sixty-two thousand, five hundred ninety-one".