23443613 has 2 divisors, whose sum is σ = 23443614. Its totient is φ = 23443612.

The previous prime is 23443603. The next prime is 23443621. The reversal of 23443613 is 31634432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21187609 + 2256004 = 4603^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443613 - 2⁴ = 23443597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23443603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721806 + 11721807.

It is an arithmetic number, because the mean of its divisors is an integer number (11721807).

Almost surely, 2^23443613 is an apocalyptic number.

It is an amenable number.

23443613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23443613 is an equidigital number, since it uses as much as digits as its factorization.

23443613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

The square root of 23443613 is about 4841.8604895226. The cubic root of 23443613 is about 286.2034389668.

The spelling of 23443613 in words is "twenty-three million, four hundred forty-three thousand, six hundred thirteen".