797761568 has 18 divisors (see below), whose sum is σ = 1570907709. Its totient is φ = 398800896.

The previous prime is 797761541. The next prime is 797761571. The reversal of 797761568 is 865167797.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 778856464 + 18905104 = 27908^2 + 4348^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19972.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 157280 + ... + 162272.

Almost surely, 2^797761568 is an apocalyptic number.

It is an amenable number.

797761568 is a deficient number, since it is larger than the sum of its proper divisors (773146141).

797761568 is an frugal number, since it uses more digits than its factorization.

797761568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996 (or 4995 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 56.

The square root of 797761568 is about 28244.6732677155. The cubic root of 797761568 is about 927.4511345141.

The spelling of 797761568 in words is "seven hundred ninety-seven million, seven hundred sixty-one thousand, five hundred sixty-eight".