420683 has 2 divisors, whose sum is σ = 420684. Its totient is φ = 420682.

The previous prime is 420677. The next prime is 420691. The reversal of 420683 is 386024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420683 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁹ + 2¹⁷ + 6⁵ + 0 + 8 + 3⁹ .

It is not a weakly prime, because it can be changed into another prime (420613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210341 + 210342.

It is an arithmetic number, because the mean of its divisors is an integer number (210342).

2⁴²⁰⁶⁸³ is an apocalyptic number.

420683 is a deficient number, since it is larger than the sum of its proper divisors (1).

420683 is an equidigital number, since it uses as much as digits as its factorization.

420683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 420683 is about 648.6008017263. The cubic root of 420683 is about 74.9292963305.

The spelling of 420683 in words is "four hundred twenty thousand, six hundred eighty-three".