676774644 has 96 divisors (see below), whose sum is σ = 1949337600. Its totient is φ = 177959808.

The previous prime is 676774619. The next prime is 676774673. The reversal of 676774644 is 446477676.

It is a super-2 number, since 2×676774644² = 916047837522653472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483057 + ... + 484455.

It is an arithmetic number, because the mean of its divisors is an integer number (20305600).

Almost surely, 2^676774644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676774644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974668800).

676774644 is an abundant number, since it is smaller than the sum of its proper divisors (1272562956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

676774644 is a wasteful number, since it uses less digits than its factorization.

676774644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 51.

The square root of 676774644 is about 26014.8927347395. The cubic root of 676774644 is about 877.9734028884.

The spelling of 676774644 in words is "six hundred seventy-six million, seven hundred seventy-four thousand, six hundred forty-four".