431981925 has 12 divisors (see below), whose sum is σ = 714210240. Its totient is φ = 230390320.

The previous prime is 431981909. The next prime is 431981947. The reversal of 431981925 is 529189134.

It is not a de Polignac number, because 431981925 - 2⁴ = 431981909 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2879805 + ... + 2879954.

It is an arithmetic number, because the mean of its divisors is an integer number (59517520).

Almost surely, 2^431981925 is an apocalyptic number.

It is an amenable number.

431981925 is a deficient number, since it is larger than the sum of its proper divisors (282228315).

431981925 is a wasteful number, since it uses less digits than its factorization.

431981925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759772 (or 5759767 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 431981925 is about 20784.1748693567. The cubic root of 431981925 is about 755.9420867005.

The spelling of 431981925 in words is "four hundred thirty-one million, nine hundred eighty-one thousand, nine hundred twenty-five".