825783 has 8 divisors (see below), whose sum is σ = 1258368. Its totient is φ = 471864.

The previous prime is 825779. The next prime is 825791. The reversal of 825783 is 387528.

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

It is not a de Polignac number, because 825783 - 2² = 825779 is a prime.

It is a d-powerful number, because it can be written as 8 + 2⁵ + 7⁷ + 5 + 8 + 3⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825733) 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, 19641 + ... + 19682.

It is an arithmetic number, because the mean of its divisors is an integer number (157296).

2⁸²⁵⁷⁸³ is an apocalyptic number.

825783 is a deficient number, since it is larger than the sum of its proper divisors (432585).

825783 is a wasteful number, since it uses less digits than its factorization.

825783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39333.

The product of its digits is 13440, while the sum is 33.

The square root of 825783 is about 908.7260313208. The cubic root of 825783 is about 93.8185347752.

The spelling of 825783 in words is "eight hundred twenty-five thousand, seven hundred eighty-three".