674839 has 8 divisors (see below), whose sum is σ = 760320. Its totient is φ = 593400.

The previous prime is 674837. The next prime is 674851. The reversal of 674839 is 938476.

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

It is a cyclic number.

It is not a de Polignac number, because 674839 - 2¹ = 674837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674798 and 674807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674831) 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, 649 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2⁶⁷⁴⁸³⁹ is an apocalyptic number.

674839 is a deficient number, since it is larger than the sum of its proper divisors (85481).

674839 is a wasteful number, since it uses less digits than its factorization.

674839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021.

The product of its digits is 36288, while the sum is 37.

The square root of 674839 is about 821.4858489347. The cubic root of 674839 is about 87.7135572680.

The spelling of 674839 in words is "six hundred seventy-four thousand, eight hundred thirty-nine".