23980815 has 12 divisors (see below), whose sum is σ = 41566824. Its totient is φ = 12789744.

The previous prime is 23980811. The next prime is 23980819. The reversal of 23980815 is 51808932.

It is an interprime number because it is at equal distance from previous prime (23980811) and next prime (23980819).

It is not a de Polignac number, because 23980815 - 2² = 23980811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23980815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23980811) 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, 266409 + ... + 266498.

It is an arithmetic number, because the mean of its divisors is an integer number (3463902).

Almost surely, 2^23980815 is an apocalyptic number.

23980815 is a deficient number, since it is larger than the sum of its proper divisors (17586009).

23980815 is a wasteful number, since it uses less digits than its factorization.

23980815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532918 (or 532915 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 23980815 is about 4897.0210332405. The cubic root of 23980815 is about 288.3730336891.

The spelling of 23980815 in words is "twenty-three million, nine hundred eighty thousand, eight hundred fifteen".