676778554 has 8 divisors (see below), whose sum is σ = 1039928148. Its totient is φ = 330135840.

The previous prime is 676778549. The next prime is 676778561. The reversal of 676778554 is 455877676.

It can be written as a sum of positive squares in 2 ways, for example, as 674804529 + 1974025 = 25977^2 + 1405^2 .

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

It is a super-2 number, since 2×676778554² = 916058422308661832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 676778495 and 676778504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126617 + ... + 4126780.

Almost surely, 2^676778554 is an apocalyptic number.

676778554 is a deficient number, since it is larger than the sum of its proper divisors (363149594).

676778554 is a wasteful number, since it uses less digits than its factorization.

676778554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253440.

The product of its digits is 9878400, while the sum is 55.

The square root of 676778554 is about 26014.9678838933. The cubic root of 676778554 is about 877.9750936873.

The spelling of 676778554 in words is "six hundred seventy-six million, seven hundred seventy-eight thousand, five hundred fifty-four".