9397957797 has 16 divisors (see below), whose sum is σ = 13925248960. Its totient is φ = 6264248400.

The previous prime is 9397957771. The next prime is 9397957817. The reversal of 9397957797 is 7977597939.

It is not a de Polignac number, because 9397957797 - 2⁶ = 9397957733 is a prime.

It is a super-2 number, since 2×9397957797² (a number of 21 digits) 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 (9397955797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154647 + ... + 206667.

It is an arithmetic number, because the mean of its divisors is an integer number (870328060).

Almost surely, 2^9397957797 is an apocalyptic number.

It is an amenable number.

9397957797 is a deficient number, since it is larger than the sum of its proper divisors (4527291163).

9397957797 is a wasteful number, since it uses less digits than its factorization.

9397957797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58721 (or 58715 counting only the distinct ones).

The product of its digits is 236294415, while the sum is 72.

The square root of 9397957797 is about 96943.0647184212. The cubic root of 9397957797 is about 2110.3014473890.

The spelling of 9397957797 in words is "nine billion, three hundred ninety-seven million, nine hundred fifty-seven thousand, seven hundred ninety-seven".