676543447 has 2 divisors, whose sum is σ = 676543448. Its totient is φ = 676543446.

The previous prime is 676543423. The next prime is 676543457. The reversal of 676543447 is 744345676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676543447 - 2⁷ = 676543319 is a prime.

It is a super-2 number, since 2×676543447² = 915422071357283618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 676543397 and 676543406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676543457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338271723 + 338271724.

It is an arithmetic number, because the mean of its divisors is an integer number (338271724).

Almost surely, 2^676543447 is an apocalyptic number.

676543447 is a deficient number, since it is larger than the sum of its proper divisors (1).

676543447 is an equidigital number, since it uses as much as digits as its factorization.

676543447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 46.

The square root of 676543447 is about 26010.4488042786. The cubic root of 676543447 is about 877.8734149346.

The spelling of 676543447 in words is "six hundred seventy-six million, five hundred forty-three thousand, four hundred forty-seven".