23619389 has 2 divisors, whose sum is σ = 23619390. Its totient is φ = 23619388.

The previous prime is 23619361. The next prime is 23619433. The reversal of 23619389 is 98391632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14212900 + 9406489 = 3770^2 + 3067^2 .

It is a cyclic number.

It is not a de Polignac number, because 23619389 - 2⁸ = 23619133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23619329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11809694 + 11809695.

It is an arithmetic number, because the mean of its divisors is an integer number (11809695).

Almost surely, 2^23619389 is an apocalyptic number.

It is an amenable number.

23619389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23619389 is an equidigital number, since it uses as much as digits as its factorization.

23619389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 23619389 is about 4859.9782921326. The cubic root of 23619389 is about 286.9169593064.

The spelling of 23619389 in words is "twenty-three million, six hundred nineteen thousand, three hundred eighty-nine".