676776811 has 4 divisors (see below), whose sum is σ = 677874312. Its totient is φ = 675679312.

The previous prime is 676776809. The next prime is 676776839. The reversal of 676776811 is 118677676.

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 676776811 - 2¹ = 676776809 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676777811) 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, 547825 + ... + 549058.

It is an arithmetic number, because the mean of its divisors is an integer number (169468578).

Almost surely, 2^676776811 is an apocalyptic number.

676776811 is a deficient number, since it is larger than the sum of its proper divisors (1097501).

676776811 is a wasteful number, since it uses less digits than its factorization.

676776811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097500.

The product of its digits is 592704, while the sum is 49.

The square root of 676776811 is about 26014.9343839265. The cubic root of 676776811 is about 877.9743399637.

The spelling of 676776811 in words is "six hundred seventy-six million, seven hundred seventy-six thousand, eight hundred eleven".