677854 has 4 divisors (see below), whose sum is σ = 1016784. Its totient is φ = 338926.

The previous prime is 677827. The next prime is 677857. The reversal of 677854 is 458776.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169462 + ... + 169465.

It is an arithmetic number, because the mean of its divisors is an integer number (254196).

2⁶⁷⁷⁸⁵⁴ is an apocalyptic number.

677854 is a deficient number, since it is larger than the sum of its proper divisors (338930).

677854 is a wasteful number, since it uses less digits than its factorization.

677854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338929.

The product of its digits is 47040, while the sum is 37.

The square root of 677854 is about 823.3188932607. The cubic root of 677854 is about 87.8439901119.

It can be divided in two parts, 67 and 7854, that added together give a square (7921 = 89²).

The spelling of 677854 in words is "six hundred seventy-seven thousand, eight hundred fifty-four".