1889099 has 2 divisors, whose sum is σ = 1889100. Its totient is φ = 1889098.

The previous prime is 1889087. The next prime is 1889101. The reversal of 1889099 is 9909881.

It is a strong prime.

It is an emirp because it is prime and its reverse (9909881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1889099 - 2²⁰ = 840523 is a prime.

Together with 1889101, 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 (1889009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944549 + 944550.

It is an arithmetic number, because the mean of its divisors is an integer number (944550).

2^1889099 is an apocalyptic number.

1889099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1889099 is an equidigital number, since it uses as much as digits as its factorization.

1889099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 1889099 is about 1374.4449788915. Note that the first 3 decimals coincide. The cubic root of 1889099 is about 123.6189088976.

The spelling of 1889099 in words is "one million, eight hundred eighty-nine thousand, ninety-nine".