676643709 has 16 divisors (see below), whose sum is σ = 1033482240. Its totient is φ = 385751280.

The previous prime is 676643699. The next prime is 676643719. The reversal of 676643709 is 907346676.

676643709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (676643699) and next prime (676643719).

It is not a de Polignac number, because 676643709 - 2⁵ = 676643677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676643719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28329 + ... + 46430.

It is an arithmetic number, because the mean of its divisors is an integer number (64592640).

Almost surely, 2^676643709 is an apocalyptic number.

It is an amenable number.

676643709 is a deficient number, since it is larger than the sum of its proper divisors (356838531).

676643709 is a wasteful number, since it uses less digits than its factorization.

676643709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75200.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The square root of 676643709 is about 26012.3760737077. The cubic root of 676643709 is about 877.9167789871.

The spelling of 676643709 in words is "six hundred seventy-six million, six hundred forty-three thousand, seven hundred nine".