431673 has 16 divisors (see below), whose sum is σ = 638976. Its totient is φ = 257040.

The previous prime is 431671. The next prime is 431693. The reversal of 431673 is 376134.

It is not a de Polignac number, because 431673 - 2¹ = 431671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431671) 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, 3336 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (39936).

2⁴³¹⁶⁷³ is an apocalyptic number.

It is an amenable number.

431673 is a deficient number, since it is larger than the sum of its proper divisors (207303).

431673 is a wasteful number, since it uses less digits than its factorization.

431673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its digits is 1512, while the sum is 24.

The square root of 431673 is about 657.0182645863. The cubic root of 431673 is about 75.5761843743.

Subtracting from 431673 its sum of digits (24), we obtain a square (431649 = 657²).

The spelling of 431673 in words is "four hundred thirty-one thousand, six hundred seventy-three".