420320167 has 2 divisors, whose sum is σ = 420320168. Its totient is φ = 420320166.

The previous prime is 420320161. The next prime is 420320207. The reversal of 420320167 is 761023024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420320167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420320161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210160083 + 210160084.

It is an arithmetic number, because the mean of its divisors is an integer number (210160084).

Almost surely, 2^420320167 is an apocalyptic number.

420320167 is a deficient number, since it is larger than the sum of its proper divisors (1).

420320167 is an equidigital number, since it uses as much as digits as its factorization.

420320167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 420320167 is about 20501.7113188143. The cubic root of 420320167 is about 749.0774832305.

The spelling of 420320167 in words is "four hundred twenty million, three hundred twenty thousand, one hundred sixty-seven".