814213943 has 2 divisors, whose sum is σ = 814213944. Its totient is φ = 814213942.

The previous prime is 814213913. The next prime is 814213951. The reversal of 814213943 is 349312418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 814213943 - 2¹⁸ = 813951799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814213913) 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, 407106971 + 407106972.

It is an arithmetic number, because the mean of its divisors is an integer number (407106972).

Almost surely, 2^814213943 is an apocalyptic number.

814213943 is a deficient number, since it is larger than the sum of its proper divisors (1).

814213943 is an equidigital number, since it uses as much as digits as its factorization.

814213943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 814213943 is about 28534.4343381816. The cubic root of 814213943 is about 933.7834628787.

The spelling of 814213943 in words is "eight hundred fourteen million, two hundred thirteen thousand, nine hundred forty-three".