23929449 has 4 divisors (see below), whose sum is σ = 31905936. Its totient is φ = 15952964.

The previous prime is 23929391. The next prime is 23929463. The reversal of 23929449 is 94492932.

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 23929449 - 2⁹ = 23928937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23929449.

It is not an unprimeable number, because it can be changed into a prime (23929249) 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, 3988239 + ... + 3988244.

It is an arithmetic number, because the mean of its divisors is an integer number (7976484).

Almost surely, 2^23929449 is an apocalyptic number.

It is an amenable number.

23929449 is a deficient number, since it is larger than the sum of its proper divisors (7976487).

23929449 is an equidigital number, since it uses as much as digits as its factorization.

23929449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976486.

The product of its digits is 139968, while the sum is 42.

The square root of 23929449 is about 4891.7736047368. The cubic root of 23929449 is about 288.1669917921.

The spelling of 23929449 in words is "twenty-three million, nine hundred twenty-nine thousand, four hundred forty-nine".