826212901 has 2 divisors, whose sum is σ = 826212902. Its totient is φ = 826212900.

The previous prime is 826212883. The next prime is 826212917. The reversal of 826212901 is 109212628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651576676 + 174636225 = 25526^2 + 13215^2 .

It is a cyclic number.

It is not a de Polignac number, because 826212901 - 2⁷ = 826212773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826212941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413106450 + 413106451.

It is an arithmetic number, because the mean of its divisors is an integer number (413106451).

Almost surely, 2^826212901 is an apocalyptic number.

It is an amenable number.

826212901 is a deficient number, since it is larger than the sum of its proper divisors (1).

826212901 is an equidigital number, since it uses as much as digits as its factorization.

826212901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 826212901 is about 28743.9193743651. The cubic root of 826212901 is about 938.3481253213.

The spelling of 826212901 in words is "eight hundred twenty-six million, two hundred twelve thousand, nine hundred one".