814074517 has 2 divisors, whose sum is σ = 814074518. Its totient is φ = 814074516.

The previous prime is 814074491. The next prime is 814074523. The reversal of 814074517 is 715470418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704955601 + 109118916 = 26551^2 + 10446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-814074517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814074577) 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, 407037258 + 407037259.

It is an arithmetic number, because the mean of its divisors is an integer number (407037259).

Almost surely, 2^814074517 is an apocalyptic number.

It is an amenable number.

814074517 is a deficient number, since it is larger than the sum of its proper divisors (1).

814074517 is an equidigital number, since it uses as much as digits as its factorization.

814074517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 814074517 is about 28531.9911152376. The cubic root of 814074517 is about 933.7301594743.

The spelling of 814074517 in words is "eight hundred fourteen million, seventy-four thousand, five hundred seventeen".