23397247 has 2 divisors, whose sum is σ = 23397248. Its totient is φ = 23397246.

The previous prime is 23397223. The next prime is 23397251. The reversal of 23397247 is 74279332.

23397247 is nontrivially palindromic in base 12.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23397247 - 2¹⁹ = 22872959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23397047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11698623 + 11698624.

It is an arithmetic number, because the mean of its divisors is an integer number (11698624).

Almost surely, 2^23397247 is an apocalyptic number.

23397247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23397247 is an equidigital number, since it uses as much as digits as its factorization.

23397247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 37.

The square root of 23397247 is about 4837.0700842556. The cubic root of 23397247 is about 286.0146332187.

The spelling of 23397247 in words is "twenty-three million, three hundred ninety-seven thousand, two hundred forty-seven".