23276945 has 4 divisors (see below), whose sum is σ = 27932340. Its totient is φ = 18621552.

The previous prime is 23276921. The next prime is 23276947. The reversal of 23276945 is 54967232.

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 3125824 + 20151121 = 1768^2 + 4489^2 .

It is a cyclic number.

It is not a de Polignac number, because 23276945 - 2¹⁰ = 23275921 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 23276899 and 23276908.

It is not an unprimeable number, because it can be changed into a prime (23276947) 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, 2327690 + ... + 2327699.

It is an arithmetic number, because the mean of its divisors is an integer number (6983085).

Almost surely, 2^23276945 is an apocalyptic number.

It is an amenable number.

23276945 is a deficient number, since it is larger than the sum of its proper divisors (4655395).

23276945 is an equidigital number, since it uses as much as digits as its factorization.

23276945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655394.

The product of its digits is 90720, while the sum is 38.

The square root of 23276945 is about 4824.6186377785. The cubic root of 23276945 is about 285.5235886424.

It can be divided in two parts, 232 and 76945, that added together give a palindrome (77177).

The spelling of 23276945 in words is "twenty-three million, two hundred seventy-six thousand, nine hundred forty-five".