23994665 has 4 divisors (see below), whose sum is σ = 28793604. Its totient is φ = 19195728.

The previous prime is 23994661. The next prime is 23994673. The reversal of 23994665 is 56649932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9834496 + 14160169 = 3136^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 23994665 - 2² = 23994661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23994661) 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 3 ways as a sum of consecutive naturals, for example, 2399462 + ... + 2399471.

It is an arithmetic number, because the mean of its divisors is an integer number (7198401).

Almost surely, 2^23994665 is an apocalyptic number.

It is an amenable number.

23994665 is a deficient number, since it is larger than the sum of its proper divisors (4798939).

23994665 is an equidigital number, since it uses as much as digits as its factorization.

23994665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798938.

The product of its digits is 349920, while the sum is 44.

The square root of 23994665 is about 4898.4349541461. The cubic root of 23994665 is about 288.4285391402.

The spelling of 23994665 in words is "twenty-three million, nine hundred ninety-four thousand, six hundred sixty-five".