828634 has 8 divisors (see below), whose sum is σ = 1247220. Its totient is φ = 412896.

The previous prime is 828601. The next prime is 828637. The reversal of 828634 is 436828.

It is a happy number.

828634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 815409 + 13225 = 903^2 + 115^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 828596 and 828605.

It is not an unprimeable number, because it can be changed into a prime (828637) 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, 312 + ... + 1324.

2⁸²⁸⁶³⁴ is an apocalyptic number.

828634 is a deficient number, since it is larger than the sum of its proper divisors (418586).

828634 is a wasteful number, since it uses less digits than its factorization.

828634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424.

The product of its digits is 9216, while the sum is 31.

The square root of 828634 is about 910.2933593079. The cubic root of 828634 is about 93.9263796579.

The spelling of 828634 in words is "eight hundred twenty-eight thousand, six hundred thirty-four".