889729 has 8 divisors (see below), whose sum is σ = 950400. Its totient is φ = 830016.

The previous prime is 889727. The next prime is 889747. The reversal of 889729 is 927988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 889729 - 2¹ = 889727 is a prime.

It is a Duffinian number.

889729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (889727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3252 + ... + 3514.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2⁸⁸⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

889729 is a deficient number, since it is larger than the sum of its proper divisors (60671).

889729 is a wasteful number, since it uses less digits than its factorization.

889729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 72576, while the sum is 43.

The square root of 889729 is about 943.2544725576. The cubic root of 889729 is about 96.1802530631.

The spelling of 889729 in words is "eight hundred eighty-nine thousand, seven hundred twenty-nine".