431804 has 6 divisors (see below), whose sum is σ = 755664. Its totient is φ = 215900.

The previous prime is 431803. The next prime is 431807. The reversal of 431804 is 408134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53972 + ... + 53979.

It is an arithmetic number, because the mean of its divisors is an integer number (125944).

2⁴³¹⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

431804 is a deficient number, since it is larger than the sum of its proper divisors (323860).

431804 is a wasteful number, since it uses less digits than its factorization.

431804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107955 (or 107953 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 431804 is about 657.1179498385. The cubic root of 431804 is about 75.5838286473.

Adding to 431804 its reverse (408134), we get a palindrome (839938).

The spelling of 431804 in words is "four hundred thirty-one thousand, eight hundred four".