23280985 has 32 divisors (see below), whose sum is σ = 36207360. Its totient is φ = 13955328.

The previous prime is 23280967. The next prime is 23281009. The reversal of 23280985 is 58908232.

It is a cyclic number.

It is not a de Polignac number, because 23280985 - 2²³ = 14892377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7299 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (1131480).

Almost surely, 2^23280985 is an apocalyptic number.

It is an amenable number.

23280985 is a deficient number, since it is larger than the sum of its proper divisors (12926375).

23280985 is a wasteful number, since it uses less digits than its factorization.

23280985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 23280985 is about 4825.0373055553. The cubic root of 23280985 is about 285.5401063966.

The spelling of 23280985 in words is "twenty-three million, two hundred eighty thousand, nine hundred eighty-five".