826729 has 2 divisors, whose sum is σ = 826730. Its totient is φ = 826728.

The previous prime is 826723. The next prime is 826753. The reversal of 826729 is 927628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769129 + 57600 = 877^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 826729 - 2⁵ = 826697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 826694 and 826703.

It is not a weakly prime, because it can be changed into another prime (826723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413364 + 413365.

It is an arithmetic number, because the mean of its divisors is an integer number (413365).

2⁸²⁶⁷²⁹ is an apocalyptic number.

It is an amenable number.

826729 is a deficient number, since it is larger than the sum of its proper divisors (1).

826729 is an equidigital number, since it uses as much as digits as its factorization.

826729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 826729 is about 909.2463912494. The cubic root of 826729 is about 93.8543466307.

The spelling of 826729 in words is "eight hundred twenty-six thousand, seven hundred twenty-nine".