676818947 has 4 divisors (see below), whose sum is σ = 773507376. Its totient is φ = 580130520.

The previous prime is 676818937. The next prime is 676818971. The reversal of 676818947 is 749818676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 676818947 - 2¹² = 676814851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 676818892 and 676818901.

It is not an unprimeable number, because it can be changed into a prime (676818917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48344204 + ... + 48344217.

It is an arithmetic number, because the mean of its divisors is an integer number (193376844).

Almost surely, 2^676818947 is an apocalyptic number.

676818947 is a deficient number, since it is larger than the sum of its proper divisors (96688429).

676818947 is an equidigital number, since it uses as much as digits as its factorization.

676818947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96688428.

The product of its digits is 4064256, while the sum is 56.

The square root of 676818947 is about 26015.7442138410. The cubic root of 676818947 is about 877.9925604260.

The spelling of 676818947 in words is "six hundred seventy-six million, eight hundred eighteen thousand, nine hundred forty-seven".