1966000679 has 2 divisors, whose sum is σ = 1966000680. Its totient is φ = 1966000678.

The previous prime is 1966000669. The next prime is 1966000697. The reversal of 1966000679 is 9760006691.

It is a happy number.

Together with next prime (1966000697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1966000679 - 2²⁰ = 1964952103 is a prime.

It is a super-2 number, since 2×1966000679² = 7730317339656922082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966000609) 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, 983000339 + 983000340.

It is an arithmetic number, because the mean of its divisors is an integer number (983000340).

Almost surely, 2^1966000679 is an apocalyptic number.

1966000679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966000679 is an equidigital number, since it uses as much as digits as its factorization.

1966000679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1966000679 is about 44339.6062116027. The cubic root of 1966000679 is about 1252.7407975508.

The spelling of 1966000679 in words is "one billion, nine hundred sixty-six million, six hundred seventy-nine", and thus it is an aban number.