23938013 has 4 divisors (see below), whose sum is σ = 26114208. Its totient is φ = 21761820.

The previous prime is 23938007. The next prime is 23938037. The reversal of 23938013 is 31083932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23938013 - 2¹⁴ = 23921629 is a prime.

It is a super-3 number, since 3×23938013³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23938003) 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, 1088081 + ... + 1088102.

It is an arithmetic number, because the mean of its divisors is an integer number (6528552).

Almost surely, 2^23938013 is an apocalyptic number.

It is an amenable number.

23938013 is a deficient number, since it is larger than the sum of its proper divisors (2176195).

23938013 is a wasteful number, since it uses less digits than its factorization.

23938013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176194.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 23938013 is about 4892.6488735653. The cubic root of 23938013 is about 288.2013646099.

The spelling of 23938013 in words is "twenty-three million, nine hundred thirty-eight thousand, thirteen".