23415397 has 2 divisors, whose sum is σ = 23415398. Its totient is φ = 23415396.

The previous prime is 23415373. The next prime is 23415401. The reversal of 23415397 is 79351432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 10556001 = 3586^2 + 3249^2 .

It is a cyclic number.

It is not a de Polignac number, because 23415397 - 2¹¹ = 23413349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23415317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11707698 + 11707699.

It is an arithmetic number, because the mean of its divisors is an integer number (11707699).

Almost surely, 2^23415397 is an apocalyptic number.

It is an amenable number.

23415397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23415397 is an equidigital number, since it uses as much as digits as its factorization.

23415397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 23415397 is about 4838.9458562790. The cubic root of 23415397 is about 286.0885710322.

The spelling of 23415397 in words is "twenty-three million, four hundred fifteen thousand, three hundred ninety-seven".