297997423 has 4 divisors (see below), whose sum is σ = 298228480. Its totient is φ = 297766368.

The previous prime is 297997421. The next prime is 297997457. The reversal of 297997423 is 324799792.

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

It is a cyclic number.

It is not a de Polignac number, because 297997423 - 2¹ = 297997421 is a prime.

It is a super-2 number, since 2×297997423² = 177604928229281858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297997421) 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, 113583 + ... + 116176.

It is an arithmetic number, because the mean of its divisors is an integer number (74557120).

Almost surely, 2^297997423 is an apocalyptic number.

297997423 is a deficient number, since it is larger than the sum of its proper divisors (231057).

297997423 is a wasteful number, since it uses less digits than its factorization.

297997423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231056.

The product of its digits is 1714608, while the sum is 52.

The square root of 297997423 is about 17262.6018606698. The cubic root of 297997423 is about 667.9400777819.

The spelling of 297997423 in words is "two hundred ninety-seven million, nine hundred ninety-seven thousand, four hundred twenty-three".