677966 has 8 divisors (see below), whose sum is σ = 1021680. Its totient is φ = 337408.

The previous prime is 677959. The next prime is 677983. The reversal of 677966 is 669776.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (127710).

2⁶⁷⁷⁹⁶⁶ is an apocalyptic number.

677966 is a deficient number, since it is larger than the sum of its proper divisors (343714).

677966 is a wasteful number, since it uses less digits than its factorization.

677966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its digits is 95256, while the sum is 41.

The square root of 677966 is about 823.3869078386. The cubic root of 677966 is about 87.8488279211.

The spelling of 677966 in words is "six hundred seventy-seven thousand, nine hundred sixty-six".