889697 has 2 divisors, whose sum is σ = 889698. Its totient is φ = 889696.

The previous prime is 889687. The next prime is 889699. The reversal of 889697 is 796988.

889697 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., 781456 + 108241 = 884^2 + 329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889697 is a prime.

Together with 889699, 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 (889699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444848 + 444849.

It is an arithmetic number, because the mean of its divisors is an integer number (444849).

2⁸⁸⁹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

889697 is a deficient number, since it is larger than the sum of its proper divisors (1).

889697 is an equidigital number, since it uses as much as digits as its factorization.

889697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 889697 is about 943.2375098563. The cubic root of 889697 is about 96.1790999760.

The spelling of 889697 in words is "eight hundred eighty-nine thousand, six hundred ninety-seven".