676787879 has 8 divisors (see below), whose sum is σ = 704267520. Its totient is φ = 649841976.

The previous prime is 676787873. The next prime is 676787897. The reversal of 676787879 is 978787676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676787879 - 2²⁸ = 408352423 is a prime.

It is a super-2 number, since 2×676787879² = 916083666322637282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676787873) 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 in 7 ways as a sum of consecutive naturals, for example, 130847 + ... + 135920.

It is an arithmetic number, because the mean of its divisors is an integer number (88033440).

Almost surely, 2^676787879 is an apocalyptic number.

676787879 is a deficient number, since it is larger than the sum of its proper divisors (27479641).

676787879 is a wasteful number, since it uses less digits than its factorization.

676787879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266869.

The product of its digits is 49787136, while the sum is 65.

The square root of 676787879 is about 26015.1471070221. The cubic root of 676787879 is about 877.9791260649.

It can be divided in two parts, 67678 and 7879, that added together give a palindrome (75557).

The spelling of 676787879 in words is "six hundred seventy-six million, seven hundred eighty-seven thousand, eight hundred seventy-nine".