972323279 has 4 divisors (see below), whose sum is σ = 1029518784. Its totient is φ = 915127776.

The previous prime is 972323257. The next prime is 972323291.

972323279 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972323279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972323239) 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, 28597727 + ... + 28597760.

It is an arithmetic number, because the mean of its divisors is an integer number (257379696).

Almost surely, 2^972323279 is an apocalyptic number.

972323279 is a deficient number, since it is larger than the sum of its proper divisors (57195505).

972323279 is a wasteful number, since it uses less digits than its factorization.

972323279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57195504.

The product of its digits is 285768, while the sum is 44.

The square root of 972323279 is about 31182.0986946036. The cubic root of 972323279 is about 990.6879818104.

The spelling of 972323279 in words is "nine hundred seventy-two million, three hundred twenty-three thousand, two hundred seventy-nine".