1680606713 has 2 divisors, whose sum is σ = 1680606714. Its totient is φ = 1680606712.

The previous prime is 1680606703. The next prime is 1680606727. The reversal of 1680606713 is 3176060861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1236788224 + 443818489 = 35168^2 + 21067^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680606713 - 2²⁶ = 1613497849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680606703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840303356 + 840303357.

It is an arithmetic number, because the mean of its divisors is an integer number (840303357).

Almost surely, 2^1680606713 is an apocalyptic number.

It is an amenable number.

1680606713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680606713 is an equidigital number, since it uses as much as digits as its factorization.

1680606713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1680606713 is about 40995.2035365114. The cubic root of 1680606713 is about 1188.9274786751.

The spelling of 1680606713 in words is "one billion, six hundred eighty million, six hundred six thousand, seven hundred thirteen".