826505 has 8 divisors (see below), whose sum is σ = 1035072. Its totient is φ = 632368.

The previous prime is 826499. The next prime is 826541. The reversal of 826505 is 505628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-826505 is a prime.

It is a super-2 number, since 2×826505² = 1366221030050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (129384).

2⁸²⁶⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

826505 is a deficient number, since it is larger than the sum of its proper divisors (208567).

826505 is a wasteful number, since it uses less digits than its factorization.

826505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7215.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 826505 is about 909.1232039718. The cubic root of 826505 is about 93.8458693374.

It can be divided in two parts, 826 and 505, that added together give a palindrome (1331).

The spelling of 826505 in words is "eight hundred twenty-six thousand, five hundred five".