431400227 has 2 divisors, whose sum is σ = 431400228. Its totient is φ = 431400226.

The previous prime is 431400223. The next prime is 431400269. The reversal of 431400227 is 722004134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431400227 - 2² = 431400223 is a prime.

It is a super-2 number, since 2×431400227² = 372212311711303058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431400223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215700113 + 215700114.

It is an arithmetic number, because the mean of its divisors is an integer number (215700114).

Almost surely, 2^431400227 is an apocalyptic number.

431400227 is a deficient number, since it is larger than the sum of its proper divisors (1).

431400227 is an equidigital number, since it uses as much as digits as its factorization.

431400227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 431400227 is about 20770.1763834590. The cubic root of 431400227 is about 755.6026222466.

The spelling of 431400227 in words is "four hundred thirty-one million, four hundred thousand, two hundred twenty-seven".