677922 has 16 divisors (see below), whose sum is σ = 1549632. Its totient is φ = 193680.

The previous prime is 677891. The next prime is 677927. The reversal of 677922 is 229776.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 677922.

It is not an unprimeable number, because it can be changed into a prime (677927) by changing a digit.

677922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8029 + ... + 8112.

It is an arithmetic number, because the mean of its divisors is an integer number (96852).

2⁶⁷⁷⁹²² is an apocalyptic number.

677922 is an abundant number, since it is smaller than the sum of its proper divisors (871710).

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

677922 is a wasteful number, since it uses less digits than its factorization.

677922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16153.

The product of its digits is 10584, while the sum is 33.

The square root of 677922 is about 823.3601884959. The cubic root of 677922 is about 87.8469274167.

The spelling of 677922 in words is "six hundred seventy-seven thousand, nine hundred twenty-two".