797908493 has 2 divisors, whose sum is σ = 797908494. Its totient is φ = 797908492.

The previous prime is 797908483. The next prime is 797908499. The reversal of 797908493 is 394809797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792253609 + 5654884 = 28147^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 797908493 - 2⁶ = 797908429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797908499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398954246 + 398954247.

It is an arithmetic number, because the mean of its divisors is an integer number (398954247).

Almost surely, 2^797908493 is an apocalyptic number.

It is an amenable number.

797908493 is a deficient number, since it is larger than the sum of its proper divisors (1).

797908493 is an equidigital number, since it uses as much as digits as its factorization.

797908493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 797908493 is about 28247.2740808737. The cubic root of 797908493 is about 927.5080677294.

The spelling of 797908493 in words is "seven hundred ninety-seven million, nine hundred eight thousand, four hundred ninety-three".