23868519 has 12 divisors (see below), whose sum is σ = 32626728. Its totient is φ = 15520960.

The previous prime is 23868517. The next prime is 23868521. The reversal of 23868519 is 91586832.

It is an interprime number because it is at equal distance from previous prime (23868517) and next prime (23868521).

It is not a de Polignac number, because 23868519 - 2¹ = 23868517 is a prime.

It is a super-2 number, since 2×23868519² = 1139412398506722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23868511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2677 + ... + 7409.

It is an arithmetic number, because the mean of its divisors is an integer number (2718894).

Almost surely, 2^23868519 is an apocalyptic number.

23868519 is a deficient number, since it is larger than the sum of its proper divisors (8758209).

23868519 is an equidigital number, since it uses as much as digits as its factorization.

23868519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4777 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 23868519 is about 4885.5418327960. The cubic root of 23868519 is about 287.9222036205.

The spelling of 23868519 in words is "twenty-three million, eight hundred sixty-eight thousand, five hundred nineteen".