1679708663 has 2 divisors, whose sum is σ = 1679708664. Its totient is φ = 1679708662.

The previous prime is 1679708651. The next prime is 1679708669. The reversal of 1679708663 is 3668079761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1679708663 - 2²⁶ = 1612599799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1679708669) 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, 839854331 + 839854332.

It is an arithmetic number, because the mean of its divisors is an integer number (839854332).

Almost surely, 2^1679708663 is an apocalyptic number.

1679708663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679708663 is an equidigital number, since it uses as much as digits as its factorization.

1679708663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 1679708663 is about 40984.2489622538. The cubic root of 1679708663 is about 1188.7156689455.

The spelling of 1679708663 in words is "one billion, six hundred seventy-nine million, seven hundred eight thousand, six hundred sixty-three".