676728343 has 4 divisors (see below), whose sum is σ = 676785928. Its totient is φ = 676670760.

The previous prime is 676728319. The next prime is 676728383. The reversal of 676728343 is 343827676.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 676728343 - 2¹³ = 676720151 is a prime.

It is a super-2 number, since 2×676728343² = 915922500439051298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 676728293 and 676728302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676728313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4113 + ... + 37018.

It is an arithmetic number, because the mean of its divisors is an integer number (169196482).

Almost surely, 2^676728343 is an apocalyptic number.

676728343 is the 16453-rd heptagonal number.

676728343 is a deficient number, since it is larger than the sum of its proper divisors (57585).

676728343 is a wasteful number, since it uses less digits than its factorization.

676728343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57584.

The product of its digits is 1016064, while the sum is 46.

The square root of 676728343 is about 26014.0028254016. The cubic root of 676728343 is about 877.9533804807.

The spelling of 676728343 in words is "six hundred seventy-six million, seven hundred twenty-eight thousand, three hundred forty-three".