23423381 has 2 divisors, whose sum is σ = 23423382. Its totient is φ = 23423380.

The previous prime is 23423369. The next prime is 23423417. The reversal of 23423381 is 18332432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19945156 + 3478225 = 4466^2 + 1865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23423381 is a prime.

It is a super-2 number, since 2×23423381² = 1097309554942322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23423381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23423311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711690 + 11711691.

It is an arithmetic number, because the mean of its divisors is an integer number (11711691).

Almost surely, 2^23423381 is an apocalyptic number.

It is an amenable number.

23423381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423381 is an equidigital number, since it uses as much as digits as its factorization.

23423381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 23423381 is about 4839.7707590339. The cubic root of 23423381 is about 286.1210834227.

The spelling of 23423381 in words is "twenty-three million, four hundred twenty-three thousand, three hundred eighty-one".