676784 has 10 divisors (see below), whose sum is σ = 1311300. Its totient is φ = 338384.

The previous prime is 676771. The next prime is 676807. The reversal of 676784 is 487676.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21134 + ... + 21165.

It is an arithmetic number, because the mean of its divisors is an integer number (131130).

2⁶⁷⁶⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

676784 is a deficient number, since it is larger than the sum of its proper divisors (634516).

676784 is a wasteful number, since it uses less digits than its factorization.

676784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42307 (or 42301 counting only the distinct ones).

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

The square root of 676784 is about 822.6688276579. The cubic root of 676784 is about 87.7977448687.

It can be divided in two parts, 676 and 784, that multiplied together give a square (529984 = 728²).

The spelling of 676784 in words is "six hundred seventy-six thousand, seven hundred eighty-four".