420011 has 4 divisors (see below), whose sum is σ = 421872. Its totient is φ = 418152.

The previous prime is 420001. The next prime is 420029. The reversal of 420011 is 110024.

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 420011 - 2¹⁰ = 418987 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (420001) 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, 536 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (105468).

2⁴²⁰⁰¹¹ is an apocalyptic number.

420011 is a deficient number, since it is larger than the sum of its proper divisors (1861).

420011 is a wasteful number, since it uses less digits than its factorization.

420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 420011 is about 648.0825564695. The cubic root of 420011 is about 74.8893776569.

Adding to 420011 its reverse (110024), we get a palindrome (530035).

The spelling of 420011 in words is "four hundred twenty thousand, eleven", and thus it is an iban number.