826345 has 8 divisors (see below), whose sum is σ = 1067976. Its totient is φ = 610176.

The previous prime is 826339. The next prime is 826349. The reversal of 826345 is 543628.

It can be written as a sum of positive squares in 4 ways, for example, as 127449 + 698896 = 357^2 + 836^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 826345 - 2⁵ = 826313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (826349) 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, 6292 + ... + 6421.

It is an arithmetic number, because the mean of its divisors is an integer number (133497).

2⁸²⁶³⁴⁵ is an apocalyptic number.

It is an amenable number.

826345 is a deficient number, since it is larger than the sum of its proper divisors (241631).

826345 is a wasteful number, since it uses less digits than its factorization.

826345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731.

The product of its digits is 5760, while the sum is 28.

The square root of 826345 is about 909.0352028387. The cubic root of 826345 is about 93.8398131901.

The spelling of 826345 in words is "eight hundred twenty-six thousand, three hundred forty-five".