516666827 has 2 divisors, whose sum is σ = 516666828. Its totient is φ = 516666826.

The previous prime is 516666797. The next prime is 516666833. The reversal of 516666827 is 728666615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516666827 - 2⁶ = 516666763 is a prime.

It is a super-2 number, since 2×516666827² = 533889220244495858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (516666847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258333413 + 258333414.

It is an arithmetic number, because the mean of its divisors is an integer number (258333414).

Almost surely, 2^516666827 is an apocalyptic number.

516666827 is a deficient number, since it is larger than the sum of its proper divisors (1).

516666827 is an equidigital number, since it uses as much as digits as its factorization.

516666827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 516666827 is about 22730.3063551726. The cubic root of 516666827 is about 802.4232912254.

The spelling of 516666827 in words is "five hundred sixteen million, six hundred sixty-six thousand, eight hundred twenty-seven".