23307949 has 4 divisors (see below), whose sum is σ = 26637664. Its totient is φ = 19978236.

The previous prime is 23307941. The next prime is 23307953. The reversal of 23307949 is 94970332.

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 23307949 - 2³ = 23307941 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 (23307941) 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, 1664847 + ... + 1664860.

It is an arithmetic number, because the mean of its divisors is an integer number (6659416).

Almost surely, 2^23307949 is an apocalyptic number.

It is an amenable number.

23307949 is a deficient number, since it is larger than the sum of its proper divisors (3329715).

23307949 is an equidigital number, since it uses as much as digits as its factorization.

23307949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329714.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 23307949 is about 4827.8306722585. The cubic root of 23307949 is about 285.6503012315.

The spelling of 23307949 in words is "twenty-three million, three hundred seven thousand, nine hundred forty-nine".