420967 has 2 divisors, whose sum is σ = 420968. Its totient is φ = 420966.

The previous prime is 420941. The next prime is 420977. The reversal of 420967 is 769024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420977) 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, 210483 + 210484.

It is an arithmetic number, because the mean of its divisors is an integer number (210484).

2⁴²⁰⁹⁶⁷ is an apocalyptic number.

420967 is a deficient number, since it is larger than the sum of its proper divisors (1).

420967 is an equidigital number, since it uses as much as digits as its factorization.

420967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 420967 is about 648.8196976048. The cubic root of 420967 is about 74.9461539432.

The spelling of 420967 in words is "four hundred twenty thousand, nine hundred sixty-seven".