420020927 has 4 divisors (see below), whose sum is σ = 423874440. Its totient is φ = 416167416.

The previous prime is 420020911. The next prime is 420020957. The reversal of 420020927 is 729020024.

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 420020927 - 2⁴ = 420020911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420020896 and 420020905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420020957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1926593 + ... + 1926810.

It is an arithmetic number, because the mean of its divisors is an integer number (105968610).

Almost surely, 2^420020927 is an apocalyptic number.

420020927 is a deficient number, since it is larger than the sum of its proper divisors (3853513).

420020927 is a wasteful number, since it uses less digits than its factorization.

420020927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853512.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 420020927 is about 20494.4120920801. The cubic root of 420020927 is about 748.8996765813.

The spelling of 420020927 in words is "four hundred twenty million, twenty thousand, nine hundred twenty-seven".