889945 has 16 divisors (see below), whose sum is σ = 1248768. Its totient is φ = 596160.

The previous prime is 889937. The next prime is 889951. The reversal of 889945 is 549988.

It is a happy number.

889945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 889945 - 2³ = 889937 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 88 and 9945 contains 889945 itself.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (78048).

2⁸⁸⁹⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

889945 is a deficient number, since it is larger than the sum of its proper divisors (358823).

889945 is a wasteful number, since it uses less digits than its factorization.

889945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 103680, while the sum is 43.

The square root of 889945 is about 943.3689628136. The cubic root of 889945 is about 96.1880356777.

Adding to 889945 its sum of digits (43), we get a palindrome (889988).

The spelling of 889945 in words is "eight hundred eighty-nine thousand, nine hundred forty-five".