673601 has 4 divisors (see below), whose sum is σ = 702912. Its totient is φ = 644292.

The previous prime is 673579. The next prime is 673609. The reversal of 673601 is 106376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673601 - 2¹⁰ = 672577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 29287 = 673601 / (6 + 7 + 3 + 6 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14621 + ... + 14666.

It is an arithmetic number, because the mean of its divisors is an integer number (175728).

2⁶⁷³⁶⁰¹ is an apocalyptic number.

It is an amenable number.

673601 is a deficient number, since it is larger than the sum of its proper divisors (29311).

673601 is a wasteful number, since it uses less digits than its factorization.

673601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29310.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 673601 is about 820.7319903598. The cubic root of 673601 is about 87.6598872546.

Adding to 673601 its reverse (106376), we get a palindrome (779977).

The spelling of 673601 in words is "six hundred seventy-three thousand, six hundred one".