889346729 has 4 divisors (see below), whose sum is σ = 893264784. Its totient is φ = 885428676.

The previous prime is 889346723. The next prime is 889346747. The reversal of 889346729 is 927643988.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889346729 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (889346723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958687 + ... + 1959140.

It is an arithmetic number, because the mean of its divisors is an integer number (223316196).

Almost surely, 2^889346729 is an apocalyptic number.

It is an amenable number.

889346729 is a deficient number, since it is larger than the sum of its proper divisors (3918055).

889346729 is a wasteful number, since it uses less digits than its factorization.

889346729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918054.

The product of its digits is 5225472, while the sum is 56.

The square root of 889346729 is about 29821.9169236319. The cubic root of 889346729 is about 961.6647651297.

The spelling of 889346729 in words is "eight hundred eighty-nine million, three hundred forty-six thousand, seven hundred twenty-nine".