676647473 has 2 divisors, whose sum is σ = 676647474. Its totient is φ = 676647472.

The previous prime is 676647431. The next prime is 676647497. The reversal of 676647473 is 374746676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591121969 + 85525504 = 24313^2 + 9248^2 .

It is a cyclic number.

It is not a de Polignac number, because 676647473 - 2¹⁶ = 676581937 is a prime.

It is not a weakly prime, because it can be changed into another prime (676647773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338323736 + 338323737.

It is an arithmetic number, because the mean of its divisors is an integer number (338323737).

Almost surely, 2^676647473 is an apocalyptic number.

It is an amenable number.

676647473 is a deficient number, since it is larger than the sum of its proper divisors (1).

676647473 is an equidigital number, since it uses as much as digits as its factorization.

676647473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 50.

The square root of 676647473 is about 26012.4484237836. The cubic root of 676647473 is about 877.9184068614.

The spelling of 676647473 in words is "six hundred seventy-six million, six hundred forty-seven thousand, four hundred seventy-three".