676416709 has 2 divisors, whose sum is σ = 676416710. Its totient is φ = 676416708.

The previous prime is 676416691. The next prime is 676416749. The reversal of 676416709 is 907614676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666775684 + 9641025 = 25822^2 + 3105^2 .

It is a cyclic number.

It is not a de Polignac number, because 676416709 - 2¹⁵ = 676383941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676416749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338208354 + 338208355.

It is an arithmetic number, because the mean of its divisors is an integer number (338208355).

Almost surely, 2^676416709 is an apocalyptic number.

It is an amenable number.

676416709 is a deficient number, since it is larger than the sum of its proper divisors (1).

676416709 is an equidigital number, since it uses as much as digits as its factorization.

676416709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 676416709 is about 26008.0124000278. The cubic root of 676416709 is about 877.8185936862.

The spelling of 676416709 in words is "six hundred seventy-six million, four hundred sixteen thousand, seven hundred nine".