828969 has 4 divisors (see below), whose sum is σ = 1105296. Its totient is φ = 552644.

The previous prime is 828967. The next prime is 828977. The reversal of 828969 is 969828.

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 not a de Polignac number, because 828969 - 2¹ = 828967 is a prime.

It is a super-2 number, since 2×828969² = 1374379205922, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 828969.

It is not an unprimeable number, because it can be changed into a prime (828967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138159 + ... + 138164.

It is an arithmetic number, because the mean of its divisors is an integer number (276324).

2⁸²⁸⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

828969 is a deficient number, since it is larger than the sum of its proper divisors (276327).

828969 is a wasteful number, since it uses less digits than its factorization.

828969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276326.

The product of its digits is 62208, while the sum is 42.

The square root of 828969 is about 910.4773473294. The cubic root of 828969 is about 93.9390354657.

The spelling of 828969 in words is "eight hundred twenty-eight thousand, nine hundred sixty-nine".