889687 has 2 divisors, whose sum is σ = 889688. Its totient is φ = 889686.

The previous prime is 889673. The next prime is 889697. The reversal of 889687 is 786988.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444843 + 444844.

It is an arithmetic number, because the mean of its divisors is an integer number (444844).

2⁸⁸⁹⁶⁸⁷ is an apocalyptic number.

889687 is a deficient number, since it is larger than the sum of its proper divisors (1).

889687 is an equidigital number, since it uses as much as digits as its factorization.

889687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 889687 is about 943.2322089496. The cubic root of 889687 is about 96.1787396306.

The spelling of 889687 in words is "eight hundred eighty-nine thousand, six hundred eighty-seven".