23655661 has 8 divisors (see below), whose sum is σ = 24845184. Its totient is φ = 22479600.

The previous prime is 23655659. The next prime is 23655673. The reversal of 23655661 is 16655632.

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 23655661 - 2¹ = 23655659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23655631) 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, 336 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (3105648).

Almost surely, 2^23655661 is an apocalyptic number.

It is an amenable number.

23655661 is a deficient number, since it is larger than the sum of its proper divisors (1189523).

23655661 is a wasteful number, since it uses less digits than its factorization.

23655661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731.

The product of its digits is 32400, while the sum is 34.

The square root of 23655661 is about 4863.7085644598. The cubic root of 23655661 is about 287.0637557817.

The spelling of 23655661 in words is "twenty-three million, six hundred fifty-five thousand, six hundred sixty-one".