676726987 has 2 divisors, whose sum is σ = 676726988. Its totient is φ = 676726986.

The previous prime is 676726979. The next prime is 676727027. The reversal of 676726987 is 789627676.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 676726987 - 2³ = 676726979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (676726387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338363493 + 338363494.

It is an arithmetic number, because the mean of its divisors is an integer number (338363494).

Almost surely, 2^676726987 is an apocalyptic number.

676726987 is a deficient number, since it is larger than the sum of its proper divisors (1).

676726987 is an equidigital number, since it uses as much as digits as its factorization.

676726987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 58.

The square root of 676726987 is about 26013.9767625021. The cubic root of 676726987 is about 877.9527940782.

The spelling of 676726987 in words is "six hundred seventy-six million, seven hundred twenty-six thousand, nine hundred eighty-seven".