23275815 has 16 divisors (see below), whose sum is σ = 37346400. Its totient is φ = 12378752.

The previous prime is 23275807. The next prime is 23275871. The reversal of 23275815 is 51857232.

It is a cyclic number.

It is not a de Polignac number, because 23275815 - 2³ = 23275807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841 + ... + 7829.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^23275815 is an apocalyptic number.

23275815 is a deficient number, since it is larger than the sum of its proper divisors (14070585).

23275815 is a wasteful number, since it uses less digits than its factorization.

23275815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386.

The product of its digits is 16800, while the sum is 33.

The square root of 23275815 is about 4824.5015286556. The cubic root of 23275815 is about 285.5189682354.

It can be divided in two parts, 23275 and 815, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 23275815 in words is "twenty-three million, two hundred seventy-five thousand, eight hundred fifteen".