23270805 has 12 divisors (see below), whose sum is σ = 40336140. Its totient is φ = 12411072.

The previous prime is 23270791. The next prime is 23270809. The reversal of 23270805 is 50807232.

It can be written as a sum of positive squares in 2 ways, for example, as 10929636 + 12341169 = 3306^2 + 3513^2 .

It is not a de Polignac number, because 23270805 - 2¹⁶ = 23205269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23270809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258520 + ... + 258609.

It is an arithmetic number, because the mean of its divisors is an integer number (3361345).

Almost surely, 2^23270805 is an apocalyptic number.

It is an amenable number.

23270805 is a deficient number, since it is larger than the sum of its proper divisors (17065335).

23270805 is a wasteful number, since it uses less digits than its factorization.

23270805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517140 (or 517137 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23270805 is about 4823.9822760868. The cubic root of 23270805 is about 285.4984812668.

The spelling of 23270805 in words is "twenty-three million, two hundred seventy thousand, eight hundred five".