431489 has 6 divisors (see below), whose sum is σ = 446850. Its totient is φ = 416640.

The previous prime is 431479. The next prime is 431513. The reversal of 431489 is 984134.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 47089 = 620^2 + 217^2 .

It is a de Polignac number, because none of the positive numbers 2^k-431489 is a prime.

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 431489.

It is not an unprimeable number, because it can be changed into a prime (431429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737 + ... + 1185.

It is an arithmetic number, because the mean of its divisors is an integer number (74475).

2⁴³¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

431489 is a deficient number, since it is larger than the sum of its proper divisors (15361).

431489 is an equidigital number, since it uses as much as digits as its factorization.

431489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 480 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 431489 is about 656.8782231129. The cubic root of 431489 is about 75.5654447680.

The spelling of 431489 in words is "four hundred thirty-one thousand, four hundred eighty-nine".