889445 has 4 divisors (see below), whose sum is σ = 1067340. Its totient is φ = 711552.

The previous prime is 889439. The next prime is 889453. The reversal of 889445 is 544988.

889445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 556516 = 577^2 + 746^2 .

It is a cyclic number.

It is not a de Polignac number, because 889445 - 2⁴ = 889429 is a prime.

It is a super-2 number, since 2×889445² = 1582224816050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 889399 and 889408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 889445.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88940 + ... + 88949.

It is an arithmetic number, because the mean of its divisors is an integer number (266835).

2⁸⁸⁹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

889445 is a deficient number, since it is larger than the sum of its proper divisors (177895).

889445 is a wasteful number, since it uses less digits than its factorization.

889445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177894.

The product of its digits is 46080, while the sum is 38.

The square root of 889445 is about 943.1039179221. The cubic root of 889445 is about 96.1700184490.

It can be divided in two parts, 889 and 445, that multiplied together give a triangular number (395605 = T₈₈₉).

The spelling of 889445 in words is "eight hundred eighty-nine thousand, four hundred forty-five".