676817 has 4 divisors (see below), whose sum is σ = 678756. Its totient is φ = 674880.

The previous prime is 676807. The next prime is 676829. The reversal of 676817 is 718676.

676817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 450241 + 226576 = 671^2 + 476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676817.

It is not an unprimeable number, because it can be changed into a prime (676807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284 + ... + 1197.

It is an arithmetic number, because the mean of its divisors is an integer number (169689).

2⁶⁷⁶⁸¹⁷ is an apocalyptic number.

It is an amenable number.

676817 is a deficient number, since it is larger than the sum of its proper divisors (1939).

676817 is a wasteful number, since it uses less digits than its factorization.

676817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its digits is 14112, while the sum is 35.

The square root of 676817 is about 822.6888840868. The cubic root of 676817 is about 87.7991718520.

The spelling of 676817 in words is "six hundred seventy-six thousand, eight hundred seventeen".