431354047 has 2 divisors, whose sum is σ = 431354048. Its totient is φ = 431354046.

The previous prime is 431354023. The next prime is 431354051. The reversal of 431354047 is 740453134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431354047 - 2¹⁵ = 431321279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431354087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215677023 + 215677024.

It is an arithmetic number, because the mean of its divisors is an integer number (215677024).

Almost surely, 2^431354047 is an apocalyptic number.

431354047 is a deficient number, since it is larger than the sum of its proper divisors (1).

431354047 is an equidigital number, since it uses as much as digits as its factorization.

431354047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 431354047 is about 20769.0646635808. The cubic root of 431354047 is about 755.5756596783.

The spelling of 431354047 in words is "four hundred thirty-one million, three hundred fifty-four thousand, forty-seven".