680483779 has 2 divisors, whose sum is σ = 680483780. Its totient is φ = 680483778.

The previous prime is 680483777. The next prime is 680483807. The reversal of 680483779 is 977384086.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680483779 - 2¹ = 680483777 is a prime.

Together with 680483777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (680483777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340241889 + 340241890.

It is an arithmetic number, because the mean of its divisors is an integer number (340241890).

Almost surely, 2^680483779 is an apocalyptic number.

680483779 is a deficient number, since it is larger than the sum of its proper divisors (1).

680483779 is an equidigital number, since it uses as much as digits as its factorization.

680483779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 680483779 is about 26086.0840104451. The cubic root of 680483779 is about 879.5744236109.

The spelling of 680483779 in words is "six hundred eighty million, four hundred eighty-three thousand, seven hundred seventy-nine".