972715001 has 4 divisors (see below), whose sum is σ = 975502500. Its totient is φ = 969927504.

The previous prime is 972714991. The next prime is 972715031. The reversal of 972715001 is 100517279.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 512569600 + 460145401 = 22640^2 + 21451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972715001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972715031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393226 + ... + 1393923.

It is an arithmetic number, because the mean of its divisors is an integer number (243875625).

Almost surely, 2^972715001 is an apocalyptic number.

It is an amenable number.

972715001 is a deficient number, since it is larger than the sum of its proper divisors (2787499).

972715001 is a wasteful number, since it uses less digits than its factorization.

972715001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787498.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 972715001 is about 31188.3792621547. The cubic root of 972715001 is about 990.8210041576.

The spelling of 972715001 in words is "nine hundred seventy-two million, seven hundred fifteen thousand, one".