23397613 has 4 divisors (see below), whose sum is σ = 23612380. Its totient is φ = 23182848.

The previous prime is 23397599. The next prime is 23397629. The reversal of 23397613 is 31679332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5774409 + 17623204 = 2403^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 23397613 - 2¹⁷ = 23266541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23397013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107220 + ... + 107437.

It is an arithmetic number, because the mean of its divisors is an integer number (5903095).

Almost surely, 2^23397613 is an apocalyptic number.

It is an amenable number.

23397613 is a deficient number, since it is larger than the sum of its proper divisors (214767).

23397613 is a wasteful number, since it uses less digits than its factorization.

23397613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214766.

The product of its digits is 20412, while the sum is 34.

The square root of 23397613 is about 4837.1079169272. The cubic root of 23397613 is about 286.0161245738.

The spelling of 23397613 in words is "twenty-three million, three hundred ninety-seven thousand, six hundred thirteen".