4198889 has 2 divisors, whose sum is σ = 4198890. Its totient is φ = 4198888.

The previous prime is 4198879. The next prime is 4198891. The reversal of 4198889 is 9888914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3736489 + 462400 = 1933^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4198889 - 2¹² = 4194793 is a prime.

Together with 4198891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4198879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099444 + 2099445.

It is an arithmetic number, because the mean of its divisors is an integer number (2099445).

Almost surely, 2^4198889 is an apocalyptic number.

It is an amenable number.

4198889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4198889 is an equidigital number, since it uses as much as digits as its factorization.

4198889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 47.

The square root of 4198889 is about 2049.1190790191. The cubic root of 4198889 is about 161.3286370048.

The spelling of 4198889 in words is "four million, one hundred ninety-eight thousand, eight hundred eighty-nine".