9697390831 has 8 divisors (see below), whose sum is σ = 9954831744. Its totient is φ = 9441400920.

The previous prime is 9697390819. The next prime is 9697390837. The reversal of 9697390831 is 1380937969.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9697390831 - 2⁹ = 9697390319 is a prime.

It is a super-2 number, since 2×9697390831² (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 (9697390837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349201 + ... + 375946.

It is an arithmetic number, because the mean of its divisors is an integer number (1244353968).

Almost surely, 2^9697390831 is an apocalyptic number.

9697390831 is a deficient number, since it is larger than the sum of its proper divisors (257440913).

9697390831 is a wasteful number, since it uses less digits than its factorization.

9697390831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725501.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 9697390831 is about 98475.3310783975. The cubic root of 9697390831 is about 2132.4799984380.

The spelling of 9697390831 in words is "nine billion, six hundred ninety-seven million, three hundred ninety thousand, eight hundred thirty-one".