420184663 has 2 divisors, whose sum is σ = 420184664. Its totient is φ = 420184662.

The previous prime is 420184657. The next prime is 420184679. The reversal of 420184663 is 366481024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420184663 - 2⁹ = 420184151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420184693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210092331 + 210092332.

It is an arithmetic number, because the mean of its divisors is an integer number (210092332).

Almost surely, 2^420184663 is an apocalyptic number.

420184663 is a deficient number, since it is larger than the sum of its proper divisors (1).

420184663 is an equidigital number, since it uses as much as digits as its factorization.

420184663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 420184663 is about 20498.4063526900. The cubic root of 420184663 is about 748.9969780086.

The spelling of 420184663 in words is "four hundred twenty million, one hundred eighty-four thousand, six hundred sixty-three".