23906564 has 24 divisors (see below), whose sum is σ = 46418400. Its totient is φ = 10681280.

The previous prime is 23906563. The next prime is 23906593. The reversal of 23906564 is 46560932.

It is not an unprimeable number, because it can be changed into a prime (23906563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (1934100).

Almost surely, 2^23906564 is an apocalyptic number.

It is an amenable number.

23906564 is a deficient number, since it is larger than the sum of its proper divisors (22511836).

23906564 is a wasteful number, since it uses less digits than its factorization.

23906564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283 (or 9281 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 23906564 is about 4889.4339140641. The cubic root of 23906564 is about 288.0750993710.

The spelling of 23906564 in words is "twenty-three million, nine hundred six thousand, five hundred sixty-four".