974664797 has 2 divisors, whose sum is σ = 974664798. Its totient is φ = 974664796.

The previous prime is 974664781. The next prime is 974664851. The reversal of 974664797 is 797466479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971319556 + 3345241 = 31166^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 974664797 - 2⁴ = 974664781 is a prime.

It is a super-2 number, since 2×974664797² = 1899942933022102418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974664737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487332398 + 487332399.

It is an arithmetic number, because the mean of its divisors is an integer number (487332399).

Almost surely, 2^974664797 is an apocalyptic number.

It is an amenable number.

974664797 is a deficient number, since it is larger than the sum of its proper divisors (1).

974664797 is an equidigital number, since it uses as much as digits as its factorization.

974664797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 59.

The square root of 974664797 is about 31219.6219868210. The cubic root of 974664797 is about 991.4825920640.

The spelling of 974664797 in words is "nine hundred seventy-four million, six hundred sixty-four thousand, seven hundred ninety-seven".