23507903 has 4 divisors (see below), whose sum is σ = 23518560. Its totient is φ = 23497248.

The previous prime is 23507881. The next prime is 23507917. The reversal of 23507903 is 30970532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23507903 - 2⁸ = 23507647 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 (23507963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (5879640).

Almost surely, 2^23507903 is an apocalyptic number.

23507903 is a deficient number, since it is larger than the sum of its proper divisors (10657).

23507903 is an equidigital number, since it uses as much as digits as its factorization.

23507903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10656.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 23507903 is about 4848.4949211070. The cubic root of 23507903 is about 286.4648211047.

The spelling of 23507903 in words is "twenty-three million, five hundred seven thousand, nine hundred three".