23719427 has 4 divisors (see below), whose sum is σ = 23742336. Its totient is φ = 23696520.

The previous prime is 23719411. The next prime is 23719441. The reversal of 23719427 is 72491732.

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

It is a cyclic number.

It is not a de Polignac number, because 23719427 - 2⁴ = 23719411 is a prime.

It is a super-2 number, since 2×23719427² = 1125222434416658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23719447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9824 + ... + 11997.

It is an arithmetic number, because the mean of its divisors is an integer number (5935584).

Almost surely, 2^23719427 is an apocalyptic number.

23719427 is a deficient number, since it is larger than the sum of its proper divisors (22909).

23719427 is a wasteful number, since it uses less digits than its factorization.

23719427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22908.

The product of its digits is 21168, while the sum is 35.

The square root of 23719427 is about 4870.2594386747. The cubic root of 23719427 is about 287.3214599104.

The spelling of 23719427 in words is "twenty-three million, seven hundred nineteen thousand, four hundred twenty-seven".