890829 has 6 divisors (see below), whose sum is σ = 1286766. Its totient is φ = 593880.

The previous prime is 890821. The next prime is 890833. The reversal of 890829 is 928098.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 328329 = 750^2 + 573^2 .

It is not a de Polignac number, because 890829 - 2³ = 890821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 890793 and 890802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890821) 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 5 ways as a sum of consecutive naturals, for example, 49482 + ... + 49499.

It is an arithmetic number, because the mean of its divisors is an integer number (214461).

2⁸⁹⁰⁸²⁹ is an apocalyptic number.

It is an amenable number.

890829 is a deficient number, since it is larger than the sum of its proper divisors (395937).

890829 is a wasteful number, since it uses less digits than its factorization.

890829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98987 (or 98984 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 890829 is about 943.8373800608. The cubic root of 890829 is about 96.2198736321.

The spelling of 890829 in words is "eight hundred ninety thousand, eight hundred twenty-nine".