829989 has 6 divisors (see below), whose sum is σ = 1198886. Its totient is φ = 553320.

The previous prime is 829987. The next prime is 829993. The reversal of 829989 is 989928.

It can be written as a sum of positive squares in only one way, i.e., 656100 + 173889 = 810^2 + 417^2 .

It is not a de Polignac number, because 829989 - 2¹ = 829987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46102 + ... + 46119.

2⁸²⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

829989 is a deficient number, since it is larger than the sum of its proper divisors (368897).

829989 is a wasteful number, since it uses less digits than its factorization.

829989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92227 (or 92224 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 829989 is about 911.0373208601. The cubic root of 829989 is about 93.9775485840.

The spelling of 829989 in words is "eight hundred twenty-nine thousand, nine hundred eighty-nine".