972552217 has 48 divisors (see below), whose sum is σ = 1270926720. Its totient is φ = 724559616.

The previous prime is 972552187. The next prime is 972552233. The reversal of 972552217 is 712255279.

It is a de Polignac number, because none of the positive numbers 2^k-972552217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 972552217.

It is not an unprimeable number, because it can be changed into a prime (972552257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4284258 + ... + 4284484.

It is an arithmetic number, because the mean of its divisors is an integer number (26477640).

Almost surely, 2^972552217 is an apocalyptic number.

It is an amenable number.

972552217 is a deficient number, since it is larger than the sum of its proper divisors (298374503).

972552217 is a wasteful number, since it uses less digits than its factorization.

972552217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 359 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 972552217 is about 31185.7694630099. The cubic root of 972552217 is about 990.7657297266.

The spelling of 972552217 in words is "nine hundred seventy-two million, five hundred fifty-two thousand, two hundred seventeen".