676728413 has 2 divisors, whose sum is σ = 676728414. Its totient is φ = 676728412.

The previous prime is 676728383. The next prime is 676728421. The reversal of 676728413 is 314827676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503463844 + 173264569 = 22438^2 + 13163^2 .

It is a cyclic number.

It is not a de Polignac number, because 676728413 - 2¹⁸ = 676466269 is a prime.

It is a super-2 number, since 2×676728413² = 915922689922997138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676728443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338364206 + 338364207.

It is an arithmetic number, because the mean of its divisors is an integer number (338364207).

Almost surely, 2^676728413 is an apocalyptic number.

It is an amenable number.

676728413 is a deficient number, since it is larger than the sum of its proper divisors (1).

676728413 is an equidigital number, since it uses as much as digits as its factorization.

676728413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The square root of 676728413 is about 26014.0041708308. The cubic root of 676728413 is about 877.9534107522.

The spelling of 676728413 in words is "six hundred seventy-six million, seven hundred twenty-eight thousand, four hundred thirteen".