677744 has 10 divisors (see below), whose sum is σ = 1313160. Its totient is φ = 338864.

The previous prime is 677737. The next prime is 677767. The reversal of 677744 is 447776.

677744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 677744.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21164 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (131316).

2⁶⁷⁷⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

677744 is a deficient number, since it is larger than the sum of its proper divisors (635416).

677744 is a wasteful number, since it uses less digits than its factorization.

677744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42367 (or 42361 counting only the distinct ones).

The product of its digits is 32928, while the sum is 35.

The square root of 677744 is about 823.2520877593. The cubic root of 677744 is about 87.8392381733.

The spelling of 677744 in words is "six hundred seventy-seven thousand, seven hundred forty-four".