676878677 has 4 divisors (see below), whose sum is σ = 677135520. Its totient is φ = 676621836.

The previous prime is 676878637. The next prime is 676878679. The reversal of 676878677 is 776878676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 676878677 - 2¹² = 676874581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676878679) 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, 124427 + ... + 129752.

It is an arithmetic number, because the mean of its divisors is an integer number (169283880).

Almost surely, 2^676878677 is an apocalyptic number.

It is an amenable number.

676878677 is a deficient number, since it is larger than the sum of its proper divisors (256843).

676878677 is a wasteful number, since it uses less digits than its factorization.

676878677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256842.

The product of its digits is 33191424, while the sum is 62.

The square root of 676878677 is about 26016.8921472185. The cubic root of 676878677 is about 878.0183875955.

Subtracting 676878677 from its reverse (776878676), we obtain a palindrome (99999999).

The spelling of 676878677 in words is "six hundred seventy-six million, eight hundred seventy-eight thousand, six hundred seventy-seven".