406826773 has 2 divisors, whose sum is σ = 406826774. Its totient is φ = 406826772.

The previous prime is 406826759. The next prime is 406826789. The reversal of 406826773 is 377628604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404130609 + 2696164 = 20103^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 406826773 - 2⁹ = 406826261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406823773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203413386 + 203413387.

It is an arithmetic number, because the mean of its divisors is an integer number (203413387).

Almost surely, 2^406826773 is an apocalyptic number.

It is an amenable number.

406826773 is a deficient number, since it is larger than the sum of its proper divisors (1).

406826773 is an equidigital number, since it uses as much as digits as its factorization.

406826773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 406826773 is about 20169.9472731091. The cubic root of 406826773 is about 740.9743514088.

The spelling of 406826773 in words is "four hundred six million, eight hundred twenty-six thousand, seven hundred seventy-three".