431740197 has 48 divisors (see below), whose sum is σ = 740413440. Its totient is φ = 237194496.

The previous prime is 431740189. The next prime is 431740207. The reversal of 431740197 is 791047134.

It is not a de Polignac number, because 431740197 - 2³ = 431740189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431740297) 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 47 ways as a sum of consecutive naturals, for example, 699433 + ... + 700049.

It is an arithmetic number, because the mean of its divisors is an integer number (15425280).

Almost surely, 2^431740197 is an apocalyptic number.

It is an amenable number.

431740197 is a deficient number, since it is larger than the sum of its proper divisors (308673243).

431740197 is a wasteful number, since it uses less digits than its factorization.

431740197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 431740197 is about 20778.3588620468. The cubic root of 431740197 is about 755.8010572939.

The spelling of 431740197 in words is "four hundred thirty-one million, seven hundred forty thousand, one hundred ninety-seven".