23913319 has 4 divisors (see below), whose sum is σ = 23934096. Its totient is φ = 23892544.

The previous prime is 23913317. The next prime is 23913341. The reversal of 23913319 is 91331932.

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

It is a 6-Lehmer number, since φ(23913319) divides (23913319-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 23913319 - 2¹ = 23913317 is a prime.

It is a super-2 number, since 2×23913319² = 1143693651191522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23913317) 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, 8554 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (5983524).

Almost surely, 2^23913319 is an apocalyptic number.

23913319 is a deficient number, since it is larger than the sum of its proper divisors (20777).

23913319 is a wasteful number, since it uses less digits than its factorization.

23913319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20776.

The product of its digits is 4374, while the sum is 31.

The square root of 23913319 is about 4890.1246405383. The cubic root of 23913319 is about 288.1022294937.

The spelling of 23913319 in words is "twenty-three million, nine hundred thirteen thousand, three hundred nineteen".