23455985 has 16 divisors (see below), whose sum is σ = 32368896. Its totient is φ = 15983808.

The previous prime is 23455973. The next prime is 23455987. The reversal of 23455985 is 58955432.

It is a cyclic number.

It is not a de Polignac number, because 23455985 - 2¹² = 23451889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23455987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3839 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (2023056).

Almost surely, 2^23455985 is an apocalyptic number.

It is an amenable number.

23455985 is a deficient number, since it is larger than the sum of its proper divisors (8912911).

23455985 is a wasteful number, since it uses less digits than its factorization.

23455985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192.

The product of its digits is 216000, while the sum is 41.

The square root of 23455985 is about 4843.1379290704. The cubic root of 23455985 is about 286.2537765753.

The spelling of 23455985 in words is "twenty-three million, four hundred fifty-five thousand, nine hundred eighty-five".