674139 has 8 divisors (see below), whose sum is σ = 946240. Its totient is φ = 425736.

The previous prime is 674131. The next prime is 674159. The reversal of 674139 is 931476.

It is a happy number.

674139 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 674139 - 2³ = 674131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674131) 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, 5857 + ... + 5970.

It is an arithmetic number, because the mean of its divisors is an integer number (118280).

2⁶⁷⁴¹³⁹ is an apocalyptic number.

674139 is a deficient number, since it is larger than the sum of its proper divisors (272101).

674139 is a wasteful number, since it uses less digits than its factorization.

674139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849.

The product of its digits is 4536, while the sum is 30.

The square root of 674139 is about 821.0596811438. The cubic root of 674139 is about 87.6832188061.

The spelling of 674139 in words is "six hundred seventy-four thousand, one hundred thirty-nine".