403673 has 4 divisors (see below), whose sum is σ = 421248. Its totient is φ = 386100.

The previous prime is 403661. The next prime is 403679. The reversal of 403673 is 376304.

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 403673 - 2¹² = 399577 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: 17551 = 403673 / (4 + 0 + 3 + 6 + 7 + 3).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 403673.

It is not an unprimeable number, because it can be changed into a prime (403679) 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, 8753 + ... + 8798.

It is an arithmetic number, because the mean of its divisors is an integer number (105312).

2⁴⁰³⁶⁷³ is an apocalyptic number.

It is an amenable number.

403673 is a deficient number, since it is larger than the sum of its proper divisors (17575).

403673 is a wasteful number, since it uses less digits than its factorization.

403673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 403673 is about 635.3526579782. The cubic root of 403673 is about 73.9054673093.

Adding to 403673 its reverse (376304), we get a palindrome (779977).

The spelling of 403673 in words is "four hundred three thousand, six hundred seventy-three".