23498819 has 2 divisors, whose sum is σ = 23498820. Its totient is φ = 23498818.

The previous prime is 23498809. The next prime is 23498831. The reversal of 23498819 is 91889432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23498819 - 2⁴ = 23498803 is a prime.

It is a super-2 number, since 2×23498819² = 1104388988789522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23498819.

It is not a weakly prime, because it can be changed into another prime (23498809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11749409 + 11749410.

It is an arithmetic number, because the mean of its divisors is an integer number (11749410).

Almost surely, 2^23498819 is an apocalyptic number.

23498819 is a deficient number, since it is larger than the sum of its proper divisors (1).

23498819 is an equidigital number, since it uses as much as digits as its factorization.

23498819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 23498819 is about 4847.5580450367. The cubic root of 23498819 is about 286.4279174629.

The spelling of 23498819 in words is "twenty-three million, four hundred ninety-eight thousand, eight hundred nineteen".