889447 has 12 divisors (see below), whose sum is σ = 1017480. Its totient is φ = 775008.

The previous prime is 889439. The next prime is 889453. The reversal of 889447 is 744988.

It is not a de Polignac number, because 889447 - 2³ = 889439 is a prime.

It is a super-2 number, since 2×889447² = 1582231931618, which contains 22 as substring.

It is a Duffinian number.

889447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3073 + ... + 3349.

It is an arithmetic number, because the mean of its divisors is an integer number (84790).

2⁸⁸⁹⁴⁴⁷ is an apocalyptic number.

889447 is a deficient number, since it is larger than the sum of its proper divisors (128033).

889447 is a wasteful number, since it uses less digits than its factorization.

889447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 309 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 889447 is about 943.1049782500. The cubic root of 889447 is about 96.1700905314.

The spelling of 889447 in words is "eight hundred eighty-nine thousand, four hundred forty-seven".