972995687 has 2 divisors, whose sum is σ = 972995688. Its totient is φ = 972995686.

The previous prime is 972995671. The next prime is 972995693. The reversal of 972995687 is 786599279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 972995687 - 2⁴ = 972995671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972995087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486497843 + 486497844.

It is an arithmetic number, because the mean of its divisors is an integer number (486497844).

Almost surely, 2^972995687 is an apocalyptic number.

972995687 is a deficient number, since it is larger than the sum of its proper divisors (1).

972995687 is an equidigital number, since it uses as much as digits as its factorization.

972995687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 62.

The square root of 972995687 is about 31192.8787866718. The cubic root of 972995687 is about 990.9162985443.

The spelling of 972995687 in words is "nine hundred seventy-two million, nine hundred ninety-five thousand, six hundred eighty-seven".