828663 has 8 divisors (see below), whose sum is σ = 1205376. Its totient is φ = 502200.

The previous prime is 828649. The next prime is 828673. The reversal of 828663 is 366828.

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

It is not a de Polignac number, because 828663 - 2⁸ = 828407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 25111 = 828663 / (8 + 2 + 8 + 6 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12523 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (150672).

2⁸²⁸⁶⁶³ is an apocalyptic number.

828663 is a deficient number, since it is larger than the sum of its proper divisors (376713).

828663 is a wasteful number, since it uses less digits than its factorization.

828663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25125.

The product of its digits is 13824, while the sum is 33.

The square root of 828663 is about 910.3092880994. The cubic root of 828663 is about 93.9274753701.

The spelling of 828663 in words is "eight hundred twenty-eight thousand, six hundred sixty-three".