677788 has 12 divisors (see below), whose sum is σ = 1227240. Its totient is φ = 327152.

The previous prime is 677783. The next prime is 677791. The reversal of 677788 is 887776.

677788 is nontrivially palindromic in base 15.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806 + ... + 3037.

It is an arithmetic number, because the mean of its divisors is an integer number (102270).

2⁶⁷⁷⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

677788 is a deficient number, since it is larger than the sum of its proper divisors (549452).

677788 is a wasteful number, since it uses less digits than its factorization.

677788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876 (or 5874 counting only the distinct ones).

The product of its digits is 131712, while the sum is 43.

The square root of 677788 is about 823.2788106104. The cubic root of 677788 is about 87.8411390104.

The spelling of 677788 in words is "six hundred seventy-seven thousand, seven hundred eighty-eight".