829885 has 16 divisors (see below), whose sum is σ = 1153152. Its totient is φ = 561600.

The previous prime is 829883. The next prime is 829949. The reversal of 829885 is 588928.

It is a happy number.

It is not a de Polignac number, because 829885 - 2¹ = 829883 is a prime.

It is a super-2 number, since 2×829885² = 1377418226450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4495 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2⁸²⁹⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

829885 is a deficient number, since it is larger than the sum of its proper divisors (323267).

829885 is a wasteful number, since it uses less digits than its factorization.

829885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324.

The product of its digits is 46080, while the sum is 40.

The square root of 829885 is about 910.9802412786. The cubic root of 829885 is about 93.9736232013.

The spelling of 829885 in words is "eight hundred twenty-nine thousand, eight hundred eighty-five".