6349397697 has 6 divisors (see below), whose sum is σ = 9171352242. Its totient is φ = 4232931792.

The previous prime is 6349397693. The next prime is 6349397699. The reversal of 6349397697 is 7967939436.

It can be written as a sum of positive squares in only one way, i.e., 6236102961 + 113294736 = 78969^2 + 10644^2 .

It is not a de Polignac number, because 6349397697 - 2² = 6349397693 is a prime.

It is a super-2 number, since 2×6349397697² = 80629702229337807618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6349397693) 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 in 5 ways as a sum of consecutive naturals, for example, 352744308 + ... + 352744325.

It is an arithmetic number, because the mean of its divisors is an integer number (1528558707).

Almost surely, 2^6349397697 is an apocalyptic number.

It is an amenable number.

6349397697 is a deficient number, since it is larger than the sum of its proper divisors (2821954545).

6349397697 is a wasteful number, since it uses less digits than its factorization.

6349397697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705488639 (or 705488636 counting only the distinct ones).

The product of its digits is 46294416, while the sum is 63.

The square root of 6349397697 is about 79683.1079777891. The cubic root of 6349397697 is about 1851.7293492794.

The spelling of 6349397697 in words is "six billion, three hundred forty-nine million, three hundred ninety-seven thousand, six hundred ninety-seven".