23397841 has 2 divisors, whose sum is σ = 23397842. Its totient is φ = 23397840.

The previous prime is 23397821. The next prime is 23397859. The reversal of 23397841 is 14879332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20439441 + 2958400 = 4521^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 23397841 - 2⁹ = 23397329 is a prime.

It is a super-2 number, since 2×23397841² = 1094917926922562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23397841.

It is not a weakly prime, because it can be changed into another prime (23397811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11698920 + 11698921.

It is an arithmetic number, because the mean of its divisors is an integer number (11698921).

Almost surely, 2^23397841 is an apocalyptic number.

It is an amenable number.

23397841 is a deficient number, since it is larger than the sum of its proper divisors (1).

23397841 is an equidigital number, since it uses as much as digits as its factorization.

23397841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 23397841 is about 4837.1314846715. The cubic root of 23397841 is about 286.0170536068.

The spelling of 23397841 in words is "twenty-three million, three hundred ninety-seven thousand, eight hundred forty-one".