972132866 has 16 divisors (see below), whose sum is σ = 1499109120. Its totient is φ = 472567200.

The previous prime is 972132839. The next prime is 972132893. The reversal of 972132866 is 668231279.

It is an interprime number because it is at equal distance from previous prime (972132839) and next prime (972132893).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20051 + ... + 48438.

It is an arithmetic number, because the mean of its divisors is an integer number (93694320).

Almost surely, 2^972132866 is an apocalyptic number.

972132866 is a deficient number, since it is larger than the sum of its proper divisors (526976254).

972132866 is a wasteful number, since it uses less digits than its factorization.

972132866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68689.

The product of its digits is 217728, while the sum is 44.

The square root of 972132866 is about 31179.0453028953. The cubic root of 972132866 is about 990.6233077834.

The spelling of 972132866 in words is "nine hundred seventy-two million, one hundred thirty-two thousand, eight hundred sixty-six".