420005743 has 2 divisors, whose sum is σ = 420005744. Its totient is φ = 420005742.

The previous prime is 420005711. The next prime is 420005851. The reversal of 420005743 is 347500024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420005743 - 2⁵ = 420005711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420075743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210002871 + 210002872.

It is an arithmetic number, because the mean of its divisors is an integer number (210002872).

Almost surely, 2^420005743 is an apocalyptic number.

420005743 is a deficient number, since it is larger than the sum of its proper divisors (1).

420005743 is an equidigital number, since it uses as much as digits as its factorization.

420005743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 420005743 is about 20494.0416462932. The cubic root of 420005743 is about 748.8906520868.

Adding to 420005743 its reverse (347500024), we get a palindrome (767505767).

The spelling of 420005743 in words is "four hundred twenty million, five thousand, seven hundred forty-three".