431304197 has 4 divisors (see below), whose sum is σ = 437378976. Its totient is φ = 425229420.

The previous prime is 431304193. The next prime is 431304217. The reversal of 431304197 is 791403134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431304197 - 2² = 431304193 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 (431304193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037283 + ... + 3037424.

It is an arithmetic number, because the mean of its divisors is an integer number (109344744).

Almost surely, 2^431304197 is an apocalyptic number.

It is an amenable number.

431304197 is a deficient number, since it is larger than the sum of its proper divisors (6074779).

431304197 is an equidigital number, since it uses as much as digits as its factorization.

431304197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074778.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 431304197 is about 20767.8645267153. The cubic root of 431304197 is about 755.5465521907.

The spelling of 431304197 in words is "four hundred thirty-one million, three hundred four thousand, one hundred ninety-seven".