674989 has 8 divisors (see below), whose sum is σ = 776768. Its totient is φ = 574560.

The previous prime is 674987. The next prime is 675029. The reversal of 674989 is 989476.

674989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674989 - 2¹ = 674987 is a prime.

It is a super-2 number, since 2×674989² = 911220300242, which contains 22 as substring.

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

It is a Duffinian number.

674989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249 + ... + 1705.

It is an arithmetic number, because the mean of its divisors is an integer number (97096).

2⁶⁷⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

674989 is a deficient number, since it is larger than the sum of its proper divisors (101779).

674989 is a wasteful number, since it uses less digits than its factorization.

674989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its digits is 108864, while the sum is 43.

The square root of 674989 is about 821.5771418437. The cubic root of 674989 is about 87.7200556372.

The spelling of 674989 in words is "six hundred seventy-four thousand, nine hundred eighty-nine".