431428863 has 8 divisors (see below), whose sum is σ = 575344000. Its totient is φ = 287566488.

The previous prime is 431428861. The next prime is 431428903. The reversal of 431428863 is 368824134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431428863 - 2¹ = 431428861 is a prime.

It is a super-2 number, since 2×431428863² = 372261727658945538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431428861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13758 + ... + 32436.

It is an arithmetic number, because the mean of its divisors is an integer number (71918000).

Almost surely, 2^431428863 is an apocalyptic number.

431428863 is a deficient number, since it is larger than the sum of its proper divisors (143915137).

431428863 is a wasteful number, since it uses less digits than its factorization.

431428863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26381.

The product of its digits is 110592, while the sum is 39.

The square root of 431428863 is about 20770.8657258189. The cubic root of 431428863 is about 755.6193406414.

The spelling of 431428863 in words is "four hundred thirty-one million, four hundred twenty-eight thousand, eight hundred sixty-three".