673401 has 4 divisors (see below), whose sum is σ = 897872. Its totient is φ = 448932.

The previous prime is 673399. The next prime is 673403. The reversal of 673401 is 104376.

673401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (673399) and next prime (673403).

It is not a de Polignac number, because 673401 - 2¹ = 673399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (673403) 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, 112231 + ... + 112236.

It is an arithmetic number, because the mean of its divisors is an integer number (224468).

2⁶⁷³⁴⁰¹ is an apocalyptic number.

It is an amenable number.

673401 is a deficient number, since it is larger than the sum of its proper divisors (224471).

673401 is a wasteful number, since it uses less digits than its factorization.

673401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224470.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 673401 is about 820.6101388601. The cubic root of 673401 is about 87.6512106479.

Subtracting from 673401 its sum of digits (21), we obtain a triangular number (673380 = T₁₁₆₀).

Adding to 673401 its reverse (104376), we get a palindrome (777777).

The spelling of 673401 in words is "six hundred seventy-three thousand, four hundred one".