516342287 has 2 divisors, whose sum is σ = 516342288. Its totient is φ = 516342286.

The previous prime is 516342263. The next prime is 516342331. The reversal of 516342287 is 782243615.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516342287 - 2⁸ = 516342031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516342287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516342227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258171143 + 258171144.

It is an arithmetic number, because the mean of its divisors is an integer number (258171144).

Almost surely, 2^516342287 is an apocalyptic number.

516342287 is a deficient number, since it is larger than the sum of its proper divisors (1).

516342287 is an equidigital number, since it uses as much as digits as its factorization.

516342287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 516342287 is about 22723.1663066572. The cubic root of 516342287 is about 802.2552441804.

The spelling of 516342287 in words is "five hundred sixteen million, three hundred forty-two thousand, two hundred eighty-seven".