677676 has 12 divisors (see below), whose sum is σ = 1581272. Its totient is φ = 225888.

The previous prime is 677657. The next prime is 677681. The reversal of 677676 is 676776.

677676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

677676 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28225 + ... + 28248.

2⁶⁷⁷⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

677676 is an abundant number, since it is smaller than the sum of its proper divisors (903596).

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

677676 is a wasteful number, since it uses less digits than its factorization.

677676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56480 (or 56478 counting only the distinct ones).

The product of its digits is 74088, while the sum is 39.

The square root of 677676 is about 823.2107871013. The cubic root of 677676 is about 87.8363003541.

Subtracting from 677676 its reverse (676776), we obtain a square (900 = 30²).

The spelling of 677676 in words is "six hundred seventy-seven thousand, six hundred seventy-six".