431243047 has 16 divisors (see below), whose sum is σ = 444483072. Its totient is φ = 418279680.

The previous prime is 431243039. The next prime is 431243051. The reversal of 431243047 is 740342134.

It is a cyclic number.

It is not a de Polignac number, because 431243047 - 2³ = 431243039 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 (431241047) 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, 2188953 + ... + 2189149.

It is an arithmetic number, because the mean of its divisors is an integer number (27780192).

Almost surely, 2^431243047 is an apocalyptic number.

431243047 is a deficient number, since it is larger than the sum of its proper divisors (13240025).

431243047 is a wasteful number, since it uses less digits than its factorization.

431243047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 431243047 is about 20766.3922480531. The cubic root of 431243047 is about 755.5108435535.

The spelling of 431243047 in words is "four hundred thirty-one million, two hundred forty-three thousand, forty-seven".