826385 has 12 divisors (see below), whose sum is σ = 1153908. Its totient is φ = 566496.

The previous prime is 826381. The next prime is 826391. The reversal of 826385 is 583628.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 200704 = 791^2 + 448^2 .

It is not a de Polignac number, because 826385 - 2² = 826381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (826381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1442 + ... + 1931.

It is an arithmetic number, because the mean of its divisors is an integer number (96159).

2⁸²⁶³⁸⁵ is an apocalyptic number.

It is an amenable number.

826385 is a deficient number, since it is larger than the sum of its proper divisors (327523).

826385 is a wasteful number, since it uses less digits than its factorization.

826385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 3385 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 826385 is about 909.0572039206. The cubic root of 826385 is about 93.8413273002.

The spelling of 826385 in words is "eight hundred twenty-six thousand, three hundred eighty-five".