23630081 has 4 divisors (see below), whose sum is σ = 23660100. Its totient is φ = 23600064.

The previous prime is 23630077. The next prime is 23630083. The reversal of 23630081 is 18003632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15840400 + 7789681 = 3980^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 23630081 - 2² = 23630077 is a prime.

It is a super-2 number, since 2×23630081² = 1116761456133122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23630083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13796 + ... + 15413.

It is an arithmetic number, because the mean of its divisors is an integer number (5915025).

Almost surely, 2^23630081 is an apocalyptic number.

It is an amenable number.

23630081 is a deficient number, since it is larger than the sum of its proper divisors (30019).

23630081 is an equidigital number, since it uses as much as digits as its factorization.

23630081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30018.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23630081 is about 4861.0781725868. The cubic root of 23630081 is about 286.9602465304.

The spelling of 23630081 in words is "twenty-three million, six hundred thirty thousand, eighty-one".