23643419 has 2 divisors, whose sum is σ = 23643420. Its totient is φ = 23643418.

The previous prime is 23643409. The next prime is 23643427. The reversal of 23643419 is 91434632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23643419 - 2¹² = 23639323 is a prime.

It is a super-2 number, since 2×23643419² = 1118022524019122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23643409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11821709 + 11821710.

It is an arithmetic number, because the mean of its divisors is an integer number (11821710).

Almost surely, 2^23643419 is an apocalyptic number.

23643419 is a deficient number, since it is larger than the sum of its proper divisors (1).

23643419 is an equidigital number, since it uses as much as digits as its factorization.

23643419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 23643419 is about 4862.4498969141. The cubic root of 23643419 is about 287.0142279486.

The spelling of 23643419 in words is "twenty-three million, six hundred forty-three thousand, four hundred nineteen".