431493 has 4 divisors (see below), whose sum is σ = 575328. Its totient is φ = 287660.

The previous prime is 431479. The next prime is 431513. The reversal of 431493 is 394134.

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 431493 - 2⁶ = 431429 is a prime.

It is a D-number.

It is a Curzon number.

431493 is a lucky number.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431423) 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, 71913 + ... + 71918.

It is an arithmetic number, because the mean of its divisors is an integer number (143832).

2⁴³¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

431493 is a deficient number, since it is larger than the sum of its proper divisors (143835).

431493 is a wasteful number, since it uses less digits than its factorization.

431493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143834.

The product of its digits is 1296, while the sum is 24.

The square root of 431493 is about 656.8812678102. The cubic root of 431493 is about 75.5656782702.

The spelling of 431493 in words is "four hundred thirty-one thousand, four hundred ninety-three".