677746 has 8 divisors (see below), whose sum is σ = 1020780. Its totient is φ = 337488.

The previous prime is 677737. The next prime is 677767. The reversal of 677746 is 647776.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 55225 = 789^2 + 235^2 .

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

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, 100 + ... + 1168.

2⁶⁷⁷⁷⁴⁶ is an apocalyptic number.

677746 is a deficient number, since it is larger than the sum of its proper divisors (343034).

677746 is a wasteful number, since it uses less digits than its factorization.

677746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its digits is 49392, while the sum is 37.

The square root of 677746 is about 823.2533024531. The cubic root of 677746 is about 87.8393245768.

The spelling of 677746 in words is "six hundred seventy-seven thousand, seven hundred forty-six".