874889 has 2 divisors, whose sum is σ = 874890. Its totient is φ = 874888.

The previous prime is 874879. The next prime is 874891. The reversal of 874889 is 988478.

It is a happy number.

874889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 100489 = 880^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 874889 - 2⁴ = 874873 is a prime.

It is a Sophie Germain prime.

Together with 874891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 874889.

It is not a weakly prime, because it can be changed into another prime (874859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437444 + 437445.

It is an arithmetic number, because the mean of its divisors is an integer number (437445).

2⁸⁷⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

874889 is a deficient number, since it is larger than the sum of its proper divisors (1).

874889 is an equidigital number, since it uses as much as digits as its factorization.

874889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 874889 is about 935.3550128160. The cubic root of 874889 is about 95.6425144845.

The spelling of 874889 in words is "eight hundred seventy-four thousand, eight hundred eighty-nine".