775830317 has 2 divisors, whose sum is σ = 775830318. Its totient is φ = 775830316.

The previous prime is 775830259. The next prime is 775830337. The reversal of 775830317 is 713038577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652598116 + 123232201 = 25546^2 + 11101^2 .

It is a cyclic number.

It is not a de Polignac number, because 775830317 - 2⁸ = 775830061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775830337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387915158 + 387915159.

It is an arithmetic number, because the mean of its divisors is an integer number (387915159).

Almost surely, 2^775830317 is an apocalyptic number.

It is an amenable number.

775830317 is a deficient number, since it is larger than the sum of its proper divisors (1).

775830317 is an equidigital number, since it uses as much as digits as its factorization.

775830317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 775830317 is about 27853.7307555020. The cubic root of 775830317 is about 918.8731939513.

The spelling of 775830317 in words is "seven hundred seventy-five million, eight hundred thirty thousand, three hundred seventeen".