676665 has 24 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 327840.

The previous prime is 676661. The next prime is 676679. The reversal of 676665 is 566676.

676665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 676665 - 2² = 676661 is a prime.

676665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (676661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (53352).

2⁶⁷⁶⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

676665 is a deficient number, since it is larger than the sum of its proper divisors (603783).

676665 is a wasteful number, since it uses less digits than its factorization.

676665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1386 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 676665 is about 822.5964988985. The cubic root of 676665 is about 87.7925986950.

The spelling of 676665 in words is "six hundred seventy-six thousand, six hundred sixty-five".