676855397 has 2 divisors, whose sum is σ = 676855398. Its totient is φ = 676855396.

The previous prime is 676855367. The next prime is 676855433. The reversal of 676855397 is 793558676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589227076 + 87628321 = 24274^2 + 9361^2 .

It is a cyclic number.

It is not a de Polignac number, because 676855397 - 2¹⁴ = 676839013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676855307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338427698 + 338427699.

It is an arithmetic number, because the mean of its divisors is an integer number (338427699).

Almost surely, 2^676855397 is an apocalyptic number.

It is an amenable number.

676855397 is a deficient number, since it is larger than the sum of its proper divisors (1).

676855397 is an equidigital number, since it uses as much as digits as its factorization.

676855397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 56.

The square root of 676855397 is about 26016.4447417398. Note that the first 3 decimals coincide. The cubic root of 676855397 is about 878.0083215363.

The spelling of 676855397 in words is "six hundred seventy-six million, eight hundred fifty-five thousand, three hundred ninety-seven".