431885797 has 16 divisors (see below), whose sum is σ = 499999104. Its totient is φ = 365400000.

The previous prime is 431885749. The next prime is 431885801. The reversal of 431885797 is 797588134.

It is not a de Polignac number, because 431885797 - 2⁷ = 431885669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431885717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296922 + ... + 298372.

It is an arithmetic number, because the mean of its divisors is an integer number (31249944).

Almost surely, 2^431885797 is an apocalyptic number.

It is an amenable number.

431885797 is a deficient number, since it is larger than the sum of its proper divisors (68113307).

431885797 is a wasteful number, since it uses less digits than its factorization.

431885797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its digits is 1693440, while the sum is 52.

The square root of 431885797 is about 20781.8622120348. The cubic root of 431885797 is about 755.8860098236.

The spelling of 431885797 in words is "four hundred thirty-one million, eight hundred eighty-five thousand, seven hundred ninety-seven".