674689 has 4 divisors (see below), whose sum is σ = 676656. Its totient is φ = 672724.

The previous prime is 674683. The next prime is 674693. The reversal of 674689 is 986476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 674689 - 2¹¹ = 672641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674683) 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, 319 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (169164).

2⁶⁷⁴⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

674689 is a deficient number, since it is larger than the sum of its proper divisors (1967).

674689 is a wasteful number, since it uses less digits than its factorization.

674689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its digits is 72576, while the sum is 40.

The square root of 674689 is about 821.3945458791. The cubic root of 674689 is about 87.7070579358.

The spelling of 674689 in words is "six hundred seventy-four thousand, six hundred eighty-nine".