23904645 has 8 divisors (see below), whose sum is σ = 38247456. Its totient is φ = 12749136.

The previous prime is 23904637. The next prime is 23904649. The reversal of 23904645 is 54640932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23904645 - 2³ = 23904637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23904649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796807 + ... + 796836.

It is an arithmetic number, because the mean of its divisors is an integer number (4780932).

Almost surely, 2^23904645 is an apocalyptic number.

It is an amenable number.

23904645 is a deficient number, since it is larger than the sum of its proper divisors (14342811).

23904645 is a wasteful number, since it uses less digits than its factorization.

23904645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593651.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 23904645 is about 4889.2376706395. The cubic root of 23904645 is about 288.0673911546.

The spelling of 23904645 in words is "twenty-three million, nine hundred four thousand, six hundred forty-five".