673759 has 4 divisors (see below), whose sum is σ = 709240. Its totient is φ = 638280.

The previous prime is 673747. The next prime is 673769. The reversal of 673759 is 957376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673759 - 2⁹ = 673247 is a prime.

It is a super-3 number, since 3×673759³ = 917561099633353437, which contains 333 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁵ + 7⁵ + 7⁶ + 3¹² + 5 + 9² .

It is a Duffinian number.

673759 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17712 + ... + 17749.

It is an arithmetic number, because the mean of its divisors is an integer number (177310).

2⁶⁷³⁷⁵⁹ is an apocalyptic number.

673759 is a deficient number, since it is larger than the sum of its proper divisors (35481).

673759 is a wasteful number, since it uses less digits than its factorization.

673759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35480.

The product of its digits is 39690, while the sum is 37.

The square root of 673759 is about 820.8282402549. The cubic root of 673759 is about 87.6667405597. Note that the first 3 decimals are identical.

The spelling of 673759 in words is "six hundred seventy-three thousand, seven hundred fifty-nine".