889605 has 24 divisors (see below), whose sum is σ = 1575288. Its totient is φ = 464256.

The previous prime is 889597. The next prime is 889631. The reversal of 889605 is 506988.

It can be written as a sum of positive squares in 4 ways, for example, as 173889 + 715716 = 417^2 + 846^2 .

It is not a de Polignac number, because 889605 - 2³ = 889597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 889605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2199 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (65637).

2⁸⁸⁹⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

889605 is a deficient number, since it is larger than the sum of its proper divisors (685683).

889605 is a wasteful number, since it uses less digits than its factorization.

889605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 889605 is about 943.1887403908. The cubic root of 889605 is about 96.1757846967.

The spelling of 889605 in words is "eight hundred eighty-nine thousand, six hundred five".