677506 has 4 divisors (see below), whose sum is σ = 1016262. Its totient is φ = 338752.

The previous prime is 677473. The next prime is 677531. The reversal of 677506 is 605776.

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

It can be written as a sum of positive squares in only one way, i.e., 483025 + 194481 = 695^2 + 441^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169375 + ... + 169378.

2⁶⁷⁷⁵⁰⁶ is an apocalyptic number.

677506 is a deficient number, since it is larger than the sum of its proper divisors (338756).

677506 is a wasteful number, since it uses less digits than its factorization.

677506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338755.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 677506 is about 823.1075263901. The cubic root of 677506 is about 87.8289549463.

The spelling of 677506 in words is "six hundred seventy-seven thousand, five hundred six".