828378 has 12 divisors (see below), whose sum is σ = 1794858. Its totient is φ = 276120.

The previous prime is 828371. The next prime is 828379. The reversal of 828378 is 873828.

It can be written as a sum of positive squares in only one way, i.e., 471969 + 356409 = 687^2 + 597^2 .

It is a super-2 number, since 2×828378² = 1372420221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (828371) by changing a digit.

828378 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22993 + ... + 23028.

2⁸²⁸³⁷⁸ is an apocalyptic number.

828378 is an abundant number, since it is smaller than the sum of its proper divisors (966480).

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

828378 is a wasteful number, since it uses less digits than its factorization.

828378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46029 (or 46026 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 828378 is about 910.1527344353. The cubic root of 828378 is about 93.9167060546.

The spelling of 828378 in words is "eight hundred twenty-eight thousand, three hundred seventy-eight".