677834 has 8 divisors (see below), whose sum is σ = 1038528. Its totient is φ = 331660.

The previous prime is 677827. The next prime is 677857. The reversal of 677834 is 438776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 677794 and 677803.

It is an unprimeable number.

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, 3512 + ... + 3699.

It is an arithmetic number, because the mean of its divisors is an integer number (129816).

2⁶⁷⁷⁸³⁴ is an apocalyptic number.

677834 is a deficient number, since it is larger than the sum of its proper divisors (360694).

677834 is a wasteful number, since it uses less digits than its factorization.

677834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260.

The product of its digits is 28224, while the sum is 35.

The square root of 677834 is about 823.3067472091. The cubic root of 677834 is about 87.8431261613.

The spelling of 677834 in words is "six hundred seventy-seven thousand, eight hundred thirty-four".