972304213 has 8 divisors (see below), whose sum is σ = 976725432. Its totient is φ = 967893696.

The previous prime is 972304211. The next prime is 972304279. The reversal of 972304213 is 312403279.

It can be written as a sum of positive squares in 4 ways, for example, as 49238289 + 923065924 = 7017^2 + 30382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 972304213 - 2¹ = 972304211 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 (972304211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218931 + ... + 223327.

It is an arithmetic number, because the mean of its divisors is an integer number (122090679).

Almost surely, 2^972304213 is an apocalyptic number.

It is an amenable number.

972304213 is a deficient number, since it is larger than the sum of its proper divisors (4421219).

972304213 is a wasteful number, since it uses less digits than its factorization.

972304213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 972304213 is about 31181.7929728231. The cubic root of 972304213 is about 990.6815063987.

The spelling of 972304213 in words is "nine hundred seventy-two million, three hundred four thousand, two hundred thirteen".