420223007 has 2 divisors, whose sum is σ = 420223008. Its totient is φ = 420223006.

The previous prime is 420223003. The next prime is 420223009. The reversal of 420223007 is 700322024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420223007 - 2² = 420223003 is a prime.

It is a super-2 number, since 2×420223007² = 353174751224244098, which contains 22 as substring.

Together with 420223009, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420223007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420223003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210111503 + 210111504.

It is an arithmetic number, because the mean of its divisors is an integer number (210111504).

Almost surely, 2^420223007 is an apocalyptic number.

420223007 is a deficient number, since it is larger than the sum of its proper divisors (1).

420223007 is an equidigital number, since it uses as much as digits as its factorization.

420223007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 420223007 is about 20499.3416235742. The cubic root of 420223007 is about 749.0197605843.

The spelling of 420223007 in words is "four hundred twenty million, two hundred twenty-three thousand, seven".