673939 has 8 divisors (see below), whose sum is σ = 788480. Its totient is φ = 563976.

The previous prime is 673921. The next prime is 673943. The reversal of 673939 is 939376.

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

It is not a de Polignac number, because 673939 - 2⁷ = 673811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 673898 and 673907.

It is not an unprimeable number, because it can be changed into a prime (673979) 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, 819 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (98560).

2⁶⁷³⁹³⁹ is an apocalyptic number.

673939 is a deficient number, since it is larger than the sum of its proper divisors (114541).

673939 is a wasteful number, since it uses less digits than its factorization.

673939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289.

The product of its digits is 30618, while the sum is 37.

The square root of 673939 is about 820.9378782831. The cubic root of 673939 is about 87.6745468170.

The spelling of 673939 in words is "six hundred seventy-three thousand, nine hundred thirty-nine".