814384117 has 2 divisors, whose sum is σ = 814384118. Its totient is φ = 814384116.

The previous prime is 814384111. The next prime is 814384183. The reversal of 814384117 is 711483418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725440356 + 88943761 = 26934^2 + 9431^2 .

It is a cyclic number.

It is not a de Polignac number, because 814384117 - 2¹¹ = 814382069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814384111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407192058 + 407192059.

It is an arithmetic number, because the mean of its divisors is an integer number (407192059).

Almost surely, 2^814384117 is an apocalyptic number.

It is an amenable number.

814384117 is a deficient number, since it is larger than the sum of its proper divisors (1).

814384117 is an equidigital number, since it uses as much as digits as its factorization.

814384117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 37.

The square root of 814384117 is about 28537.4160883567. The cubic root of 814384117 is about 933.8485131844.

The spelling of 814384117 in words is "eight hundred fourteen million, three hundred eighty-four thousand, one hundred seventeen".