797747691 has 32 divisors (see below), whose sum is σ = 1176605248. Its totient is φ = 477757440.

The previous prime is 797747681. The next prime is 797747711. The reversal of 797747691 is 196747797.

It is not a de Polignac number, because 797747691 - 2⁷ = 797747563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (797747651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229035 + ... + 232491.

It is an arithmetic number, because the mean of its divisors is an integer number (36768914).

Almost surely, 2^797747691 is an apocalyptic number.

797747691 is a deficient number, since it is larger than the sum of its proper divisors (378857557).

797747691 is a wasteful number, since it uses less digits than its factorization.

797747691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631.

The product of its digits is 4667544, while the sum is 57.

The square root of 797747691 is about 28244.4276097074. The cubic root of 797747691 is about 927.4457568363.

The spelling of 797747691 in words is "seven hundred ninety-seven million, seven hundred forty-seven thousand, six hundred ninety-one".