828978 has 8 divisors (see below), whose sum is σ = 1657968. Its totient is φ = 276324.

The previous prime is 828977. The next prime is 829001. The reversal of 828978 is 879828.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

828978 is an admirable number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (828977) 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, 69076 + ... + 69087.

It is an arithmetic number, because the mean of its divisors is an integer number (207246).

2⁸²⁸⁹⁷⁸ is an apocalyptic number.

828978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828978 is a wasteful number, since it uses less digits than its factorization.

828978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138168.

The product of its digits is 64512, while the sum is 42.

The square root of 828978 is about 910.4822897783. The cubic root of 828978 is about 93.9393754254.

Subtracting from 828978 its product of digits (64512), we obtain a triangular number (764466 = T₁₂₃₆).

The spelling of 828978 in words is "eight hundred twenty-eight thousand, nine hundred seventy-eight".