420064423 has 4 divisors (see below), whose sum is σ = 420147520. Its totient is φ = 419981328.

The previous prime is 420064399. The next prime is 420064439. The reversal of 420064423 is 324460024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420064423 - 2⁹ = 420063911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420064453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33438 + ... + 44251.

It is an arithmetic number, because the mean of its divisors is an integer number (105036880).

Almost surely, 2^420064423 is an apocalyptic number.

420064423 is a deficient number, since it is larger than the sum of its proper divisors (83097).

420064423 is an equidigital number, since it uses as much as digits as its factorization.

420064423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83096.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 420064423 is about 20495.4732319115. The cubic root of 420064423 is about 748.9255268933.

The spelling of 420064423 in words is "four hundred twenty million, sixty-four thousand, four hundred twenty-three".