431423207 has 2 divisors, whose sum is σ = 431423208. Its totient is φ = 431423206.

The previous prime is 431423203. The next prime is 431423231. The reversal of 431423207 is 702324134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431423207 - 2² = 431423203 is a prime.

It is a super-2 number, since 2×431423207² = 372251967076329698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431423203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215711603 + 215711604.

It is an arithmetic number, because the mean of its divisors is an integer number (215711604).

Almost surely, 2^431423207 is an apocalyptic number.

431423207 is a deficient number, since it is larger than the sum of its proper divisors (1).

431423207 is an equidigital number, since it uses as much as digits as its factorization.

431423207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 431423207 is about 20770.7295731277. The cubic root of 431423207 is about 755.6160385894.

The spelling of 431423207 in words is "four hundred thirty-one million, four hundred twenty-three thousand, two hundred seven".