889779 has 16 divisors (see below), whose sum is σ = 1319040. Its totient is φ = 528960.

The previous prime is 889769. The next prime is 889783. The reversal of 889779 is 977988.

It is not a de Polignac number, because 889779 - 2⁵ = 889747 is a prime.

It is a super-3 number, since 3×889779³ = 2113331904284028417, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1719 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (82440).

2⁸⁸⁹⁷⁷⁹ is an apocalyptic number.

889779 is a deficient number, since it is larger than the sum of its proper divisors (429261).

889779 is a wasteful number, since it uses less digits than its factorization.

889779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530.

The product of its digits is 254016, while the sum is 48.

The square root of 889779 is about 943.2809761678. The cubic root of 889779 is about 96.1820547062.

Subtracting 889779 from its reverse (977988), we obtain a square (88209 = 297²).

The spelling of 889779 in words is "eight hundred eighty-nine thousand, seven hundred seventy-nine".