23966505 has 24 divisors (see below), whose sum is σ = 43729920. Its totient is φ = 12108960.

The previous prime is 23966497. The next prime is 23966513. The reversal of 23966505 is 50566932.

It is an interprime number because it is at equal distance from previous prime (23966497) and next prime (23966513).

It is not a de Polignac number, because 23966505 - 2³ = 23966497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23966505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13161 + ... + 14870.

It is an arithmetic number, because the mean of its divisors is an integer number (1822080).

Almost surely, 2^23966505 is an apocalyptic number.

It is an amenable number.

23966505 is a deficient number, since it is larger than the sum of its proper divisors (19763415).

23966505 is a wasteful number, since it uses less digits than its factorization.

23966505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28061 (or 28058 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 23966505 is about 4895.5597228509. The cubic root of 23966505 is about 288.3156622833.

The spelling of 23966505 in words is "twenty-three million, nine hundred sixty-six thousand, five hundred five".