23198819 has 8 divisors (see below), whose sum is σ = 27368448. Its totient is φ = 19243080.

The previous prime is 23198803. The next prime is 23198821. The reversal of 23198819 is 91889132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23198819 - 2⁴ = 23198803 is a prime.

It is a super-3 number, since 3×23198819³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23198839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53237 + ... + 53670.

It is an arithmetic number, because the mean of its divisors is an integer number (3421056).

Almost surely, 2^23198819 is an apocalyptic number.

23198819 is a deficient number, since it is larger than the sum of its proper divisors (4169629).

23198819 is a wasteful number, since it uses less digits than its factorization.

23198819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106945.

The product of its digits is 31104, while the sum is 41.

The square root of 23198819 is about 4816.5152340671. The cubic root of 23198819 is about 285.2037898149.

The spelling of 23198819 in words is "twenty-three million, one hundred ninety-eight thousand, eight hundred nineteen".