23921193 has 16 divisors (see below), whose sum is σ = 33955200. Its totient is φ = 14927616.

The previous prime is 23921189. The next prime is 23921197. The reversal of 23921193 is 39112932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23921189) and next prime (23921197).

It is not a de Polignac number, because 23921193 - 2² = 23921189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23921193.

It is not an unprimeable number, because it can be changed into a prime (23921197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8971 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (2122200).

Almost surely, 2^23921193 is an apocalyptic number.

It is an amenable number.

23921193 is a deficient number, since it is larger than the sum of its proper divisors (10034007).

23921193 is a wasteful number, since it uses less digits than its factorization.

23921193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576.

The product of its digits is 2916, while the sum is 30.

The square root of 23921193 is about 4890.9296662291. The cubic root of 23921193 is about 288.1338474108.

The spelling of 23921193 in words is "twenty-three million, nine hundred twenty-one thousand, one hundred ninety-three".