972574399 has 2 divisors, whose sum is σ = 972574400. Its totient is φ = 972574398.

The previous prime is 972574397. The next prime is 972574429. The reversal of 972574399 is 993475279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 972574399 - 2¹ = 972574397 is a prime.

It is a super-2 number, since 2×972574399² = 1891801923180422402, which contains 22 as substring.

Together with 972574397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972574391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486287199 + 486287200.

It is an arithmetic number, because the mean of its divisors is an integer number (486287200).

Almost surely, 2^972574399 is an apocalyptic number.

972574399 is a deficient number, since it is larger than the sum of its proper divisors (1).

972574399 is an equidigital number, since it uses as much as digits as its factorization.

972574399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 55.

The square root of 972574399 is about 31186.1251039625. The cubic root of 972574399 is about 990.7732621408.

The spelling of 972574399 in words is "nine hundred seventy-two million, five hundred seventy-four thousand, three hundred ninety-nine".