677684 has 12 divisors (see below), whose sum is σ = 1355424. Its totient is φ = 290424.

The previous prime is 677683. The next prime is 677687. The reversal of 677684 is 486776.

677684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

677684 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12074 + ... + 12129.

It is an arithmetic number, because the mean of its divisors is an integer number (112952).

2⁶⁷⁷⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

677684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

677684 is a wasteful number, since it uses less digits than its factorization.

677684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24214 (or 24212 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 677684 is about 823.2156461098. The cubic root of 677684 is about 87.8366459901.

The spelling of 677684 in words is "six hundred seventy-seven thousand, six hundred eighty-four".