889567 has 4 divisors (see below), whose sum is σ = 1016656. Its totient is φ = 762480.

The previous prime is 889519. The next prime is 889579. The reversal of 889567 is 765988.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 889567 - 2⁷ = 889439 is a prime.

It is a d-powerful number, because it can be written as 8 + 8 + 5⁷ + 9⁶ + 6⁷ + 7² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63534 + ... + 63547.

It is an arithmetic number, because the mean of its divisors is an integer number (254164).

2⁸⁸⁹⁵⁶⁷ is an apocalyptic number.

889567 is a deficient number, since it is larger than the sum of its proper divisors (127089).

889567 is a wasteful number, since it uses less digits than its factorization.

889567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127088.

The product of its digits is 120960, while the sum is 43.

The square root of 889567 is about 943.1685957452. The cubic root of 889567 is about 96.1744152755.

The spelling of 889567 in words is "eight hundred eighty-nine thousand, five hundred sixty-seven".