23660005 has 8 divisors (see below), whose sum is σ = 30062232. Its totient is φ = 17814528.

The previous prime is 23659991. The next prime is 23660011. The reversal of 23660005 is 50006632.

It can be written as a sum of positive squares in 4 ways, for example, as 408321 + 23251684 = 639^2 + 4822^2 .

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 23660005 - 2⁷ = 23659877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139092 + ... + 139261.

It is an arithmetic number, because the mean of its divisors is an integer number (3757779).

Almost surely, 2^23660005 is an apocalyptic number.

It is an amenable number.

23660005 is a deficient number, since it is larger than the sum of its proper divisors (6402227).

23660005 is a wasteful number, since it uses less digits than its factorization.

23660005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278375.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23660005 is about 4864.1551167700. The cubic root of 23660005 is about 287.0813263276.

Adding to 23660005 its reverse (50006632), we get a palindrome (73666637).

The spelling of 23660005 in words is "twenty-three million, six hundred sixty thousand, five".