905297317 has 2 divisors, whose sum is σ = 905297318. Its totient is φ = 905297316.

The previous prime is 905297303. The next prime is 905297359. The reversal of 905297317 is 713792509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 731215681 + 174081636 = 27041^2 + 13194^2 .

It is an emirp because it is prime and its reverse (713792509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 905297317 - 2¹¹ = 905295269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (905297417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452648658 + 452648659.

It is an arithmetic number, because the mean of its divisors is an integer number (452648659).

Almost surely, 2^905297317 is an apocalyptic number.

It is an amenable number.

905297317 is a deficient number, since it is larger than the sum of its proper divisors (1).

905297317 is an equidigital number, since it uses as much as digits as its factorization.

905297317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 905297317 is about 30088.1590829349. The cubic root of 905297317 is about 967.3799407227.

The spelling of 905297317 in words is "nine hundred five million, two hundred ninety-seven thousand, three hundred seventeen".