431798 has 4 divisors (see below), whose sum is σ = 647700. Its totient is φ = 215898.

The previous prime is 431797. The next prime is 431801. The reversal of 431798 is 897134.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431797) 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, 107948 + ... + 107951.

It is an arithmetic number, because the mean of its divisors is an integer number (161925).

2⁴³¹⁷⁹⁸ is an apocalyptic number.

431798 is a deficient number, since it is larger than the sum of its proper divisors (215902).

431798 is a wasteful number, since it uses less digits than its factorization.

431798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215901.

The product of its digits is 6048, while the sum is 32.

The square root of 431798 is about 657.1133844322. The cubic root of 431798 is about 75.5834785617.

The spelling of 431798 in words is "four hundred thirty-one thousand, seven hundred ninety-eight".