673947 has 16 divisors (see below), whose sum is σ = 1012000. Its totient is φ = 443232.

The previous prime is 673943. The next prime is 673951. The reversal of 673947 is 749376.

It is an interprime number because it is at equal distance from previous prime (673943) and next prime (673951).

It is not a de Polignac number, because 673947 - 2² = 673943 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2829 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (63250).

2⁶⁷³⁹⁴⁷ is an apocalyptic number.

673947 is a deficient number, since it is larger than the sum of its proper divisors (338053).

673947 is a wasteful number, since it uses less digits than its factorization.

673947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 341 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 673947 is about 820.9427507445. The cubic root of 673947 is about 87.6748937295.

It can be divided in two parts, 6739 and 47, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 673947 in words is "six hundred seventy-three thousand, nine hundred forty-seven".