23297381 has 2 divisors, whose sum is σ = 23297382. Its totient is φ = 23297380.

The previous prime is 23297377. The next prime is 23297423. The reversal of 23297381 is 18379232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21077281 + 2220100 = 4591^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 23297381 - 2² = 23297377 is a prime.

It is a super-2 number, since 2×23297381² = 1085535922918322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23297341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11648690 + 11648691.

It is an arithmetic number, because the mean of its divisors is an integer number (11648691).

Almost surely, 2^23297381 is an apocalyptic number.

It is an amenable number.

23297381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23297381 is an equidigital number, since it uses as much as digits as its factorization.

23297381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 23297381 is about 4826.7360607350. The cubic root of 23297381 is about 285.6071227042.

The spelling of 23297381 in words is "twenty-three million, two hundred ninety-seven thousand, three hundred eighty-one".