825635 has 8 divisors (see below), whose sum is σ = 1007376. Its totient is φ = 649440.

The previous prime is 825613. The next prime is 825637. The reversal of 825635 is 536528.

825635 = 85² + 86² + ... + 145².

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

It is a de Polignac number, because none of the positive numbers 2^k-825635 is a prime.

It is a d-powerful number, because it can be written as 8⁶ + 2¹⁴ + 6² + 5 + 3¹² + 5⁶ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 825598 and 825607.

It is not an unprimeable number, because it can be changed into a prime (825637) 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, 1049 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (125922).

2⁸²⁵⁶³⁵ is an apocalyptic number.

825635 is a deficient number, since it is larger than the sum of its proper divisors (181741).

825635 is a wasteful number, since it uses less digits than its factorization.

825635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773.

The product of its digits is 7200, while the sum is 29.

The square root of 825635 is about 908.6445949875. The cubic root of 825635 is about 93.8129296010.

The spelling of 825635 in words is "eight hundred twenty-five thousand, six hundred thirty-five".