677898 has 24 divisors (see below), whose sum is σ = 1582308. Its totient is φ = 208512.

The previous prime is 677891. The next prime is 677927. The reversal of 677898 is 898776.

It can be written as a sum of positive squares in 2 ways, for example, as 567009 + 110889 = 753^2 + 333^2 .

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (677891) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1215 + ... + 1682.

2⁶⁷⁷⁸⁹⁸ is an apocalyptic number.

677898 is an abundant number, since it is smaller than the sum of its proper divisors (904410).

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

677898 is a wasteful number, since it uses less digits than its factorization.

677898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2915 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 677898 is about 823.3456139435. The cubic root of 677898 is about 87.8458907433.

The spelling of 677898 in words is "six hundred seventy-seven thousand, eight hundred ninety-eight".