23868919 has 2 divisors, whose sum is σ = 23868920. Its totient is φ = 23868918.

The previous prime is 23868907. The next prime is 23868931. The reversal of 23868919 is 91986832.

It is a balanced prime because it is at equal distance from previous prime (23868907) and next prime (23868931).

It is a cyclic number.

It is not a de Polignac number, because 23868919 - 2¹⁵ = 23836151 is a prime.

It is a super-2 number, since 2×23868919² = 1139450588457122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23868619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11934459 + 11934460.

It is an arithmetic number, because the mean of its divisors is an integer number (11934460).

Almost surely, 2^23868919 is an apocalyptic number.

23868919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23868919 is an equidigital number, since it uses as much as digits as its factorization.

23868919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 23868919 is about 4885.5827697420. The cubic root of 23868919 is about 287.9238119906.

The spelling of 23868919 in words is "twenty-three million, eight hundred sixty-eight thousand, nine hundred nineteen".