676505 has 4 divisors (see below), whose sum is σ = 811812. Its totient is φ = 541200.

The previous prime is 676493. The next prime is 676523. The reversal of 676505 is 505676.

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

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 326041 = 592^2 + 571^2 .

It is not a de Polignac number, because 676505 - 2¹⁰ = 675481 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676505.

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, 67646 + ... + 67655.

It is an arithmetic number, because the mean of its divisors is an integer number (202953).

2⁶⁷⁶⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

676505 is a deficient number, since it is larger than the sum of its proper divisors (135307).

676505 is a wasteful number, since it uses less digits than its factorization.

676505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135306.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 676505 is about 822.4992401212. The cubic root of 676505 is about 87.7856785188.

The spelling of 676505 in words is "six hundred seventy-six thousand, five hundred five".