23288819 has 2 divisors, whose sum is σ = 23288820. Its totient is φ = 23288818.

The previous prime is 23288807. The next prime is 23288899. The reversal of 23288819 is 91888232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23288819 - 2⁴ = 23288803 is a prime.

It is a super-2 number, since 2×23288819² = 1084738180829522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23288899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11644409 + 11644410.

It is an arithmetic number, because the mean of its divisors is an integer number (11644410).

Almost surely, 2^23288819 is an apocalyptic number.

23288819 is a deficient number, since it is larger than the sum of its proper divisors (1).

23288819 is an equidigital number, since it uses as much as digits as its factorization.

23288819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 23288819 is about 4825.8490444688. The cubic root of 23288819 is about 285.5721306764.

The spelling of 23288819 in words is "twenty-three million, two hundred eighty-eight thousand, eight hundred nineteen".