23879399 has 4 divisors (see below), whose sum is σ = 23968440. Its totient is φ = 23790360.

The previous prime is 23879389. The next prime is 23879411. The reversal of 23879399 is 99397832.

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

It is not a de Polignac number, because 23879399 - 2¹⁶ = 23813863 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 (23879389) 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, 44117 + ... + 44654.

It is an arithmetic number, because the mean of its divisors is an integer number (5992110).

Almost surely, 2^23879399 is an apocalyptic number.

23879399 is a deficient number, since it is larger than the sum of its proper divisors (89041).

23879399 is an equidigital number, since it uses as much as digits as its factorization.

23879399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89040.

The product of its digits is 734832, while the sum is 50.

The square root of 23879399 is about 4886.6551955300. The cubic root of 23879399 is about 287.9659448866.

The spelling of 23879399 in words is "twenty-three million, eight hundred seventy-nine thousand, three hundred ninety-nine".