23664434 has 4 divisors (see below), whose sum is σ = 35496654. Its totient is φ = 11832216.

The previous prime is 23664427. The next prime is 23664449. The reversal of 23664434 is 43446632.

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

It can be written as a sum of positive squares in only one way, i.e., 21114025 + 2550409 = 4595^2 + 1597^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23664434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5916107 + ... + 5916110.

Almost surely, 2^23664434 is an apocalyptic number.

23664434 is a deficient number, since it is larger than the sum of its proper divisors (11832220).

23664434 is a wasteful number, since it uses less digits than its factorization.

23664434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832219.

The product of its digits is 41472, while the sum is 32.

The square root of 23664434 is about 4864.6103646644. The cubic root of 23664434 is about 287.0992384662.

The spelling of 23664434 in words is "twenty-three million, six hundred sixty-four thousand, four hundred thirty-four".