420323207 has 2 divisors, whose sum is σ = 420323208. Its totient is φ = 420323206.

The previous prime is 420323201. The next prime is 420323221. The reversal of 420323207 is 702323024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420323207 - 2⁴ = 420323191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420323201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210161603 + 210161604.

It is an arithmetic number, because the mean of its divisors is an integer number (210161604).

Almost surely, 2^420323207 is an apocalyptic number.

420323207 is a deficient number, since it is larger than the sum of its proper divisors (1).

420323207 is an equidigital number, since it uses as much as digits as its factorization.

420323207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 420323207 is about 20501.7854588326. The cubic root of 420323207 is about 749.0792891475.

The spelling of 420323207 in words is "four hundred twenty million, three hundred twenty-three thousand, two hundred seven".