23658961 has 8 divisors (see below), whose sum is σ = 23970240. Its totient is φ = 23350032.

The previous prime is 23658931. The next prime is 23658977. The reversal of 23658961 is 16985632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23658961 - 2¹³ = 23650769 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (23658931) 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, 27780 + ... + 28618.

It is an arithmetic number, because the mean of its divisors is an integer number (2996280).

Almost surely, 2^23658961 is an apocalyptic number.

It is an amenable number.

23658961 is a deficient number, since it is larger than the sum of its proper divisors (311279).

23658961 is a wasteful number, since it uses less digits than its factorization.

23658961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its digits is 77760, while the sum is 40.

The square root of 23658961 is about 4864.0477999296. The cubic root of 23658961 is about 287.0771037684.

The spelling of 23658961 in words is "twenty-three million, six hundred fifty-eight thousand, nine hundred sixty-one".