797585797 has 4 divisors (see below), whose sum is σ = 810661036. Its totient is φ = 784510560.

The previous prime is 797585783. The next prime is 797585839.

797585797 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154405476 + 643180321 = 12426^2 + 25361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797585797 is a prime.

It is a super-2 number, since 2×797585797² = 1272286207152250418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797588797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6537528 + ... + 6537649.

It is an arithmetic number, because the mean of its divisors is an integer number (202665259).

Almost surely, 2^797585797 is an apocalyptic number.

It is an amenable number.

797585797 is a deficient number, since it is larger than the sum of its proper divisors (13075239).

797585797 is a wasteful number, since it uses less digits than its factorization.

797585797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075238.

The product of its digits is 38896200, while the sum is 64.

The square root of 797585797 is about 28241.5615184430. The cubic root of 797585797 is about 927.3830143330.

The spelling of 797585797 in words is "seven hundred ninety-seven million, five hundred eighty-five thousand, seven hundred ninety-seven".