677354644 has 6 divisors (see below), whose sum is σ = 1185370634. Its totient is φ = 338677320.

The previous prime is 677354641. The next prime is 677354707. The reversal of 677354644 is 446453776.

677354644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 673402500 + 3952144 = 25950^2 + 1988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 677354594 and 677354603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677354641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84669327 + ... + 84669334.

Almost surely, 2^677354644 is an apocalyptic number.

It is an amenable number.

677354644 is a deficient number, since it is larger than the sum of its proper divisors (508015990).

677354644 is a wasteful number, since it uses less digits than its factorization.

677354644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169338665 (or 169338663 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 46.

The square root of 677354644 is about 26026.0378083180. The cubic root of 677354644 is about 878.2241407955.

The spelling of 677354644 in words is "six hundred seventy-seven million, three hundred fifty-four thousand, six hundred forty-four".