11895889 has 2 divisors, whose sum is σ = 11895890. Its totient is φ = 11895888.

The previous prime is 11895883. The next prime is 11895893. The reversal of 11895889 is 98859811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 4100625 = 2792^2 + 2025^2 .

It is a cyclic number.

It is not a de Polignac number, because 11895889 - 2¹⁵ = 11863121 is a prime.

It is not a weakly prime, because it can be changed into another prime (11895883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5947944 + 5947945.

It is an arithmetic number, because the mean of its divisors is an integer number (5947945).

Almost surely, 2^11895889 is an apocalyptic number.

It is an amenable number.

11895889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11895889 is an equidigital number, since it uses as much as digits as its factorization.

11895889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 49.

The square root of 11895889 is about 3449.0417509795. The cubic root of 11895889 is about 228.2788281052.

The spelling of 11895889 in words is "eleven million, eight hundred ninety-five thousand, eight hundred eighty-nine".