972664375 has 10 divisors (see below), whose sum is σ = 1215442184. Its totient is φ = 778131000.

The previous prime is 972664349. The next prime is 972664387. The reversal of 972664375 is 573466279.

It is not a de Polignac number, because 972664375 - 2⁷ = 972664247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 777507 + ... + 778756.

Almost surely, 2^972664375 is an apocalyptic number.

972664375 is a deficient number, since it is larger than the sum of its proper divisors (242777809).

972664375 is an equidigital number, since it uses as much as digits as its factorization.

972664375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556283 (or 1556268 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 49.

The square root of 972664375 is about 31187.5676351972. The cubic root of 972664375 is about 990.8038144106.

The spelling of 972664375 in words is "nine hundred seventy-two million, six hundred sixty-four thousand, three hundred seventy-five".