420841711 has 4 divisors (see below), whose sum is σ = 423022432. Its totient is φ = 418660992.

The previous prime is 420841693. The next prime is 420841717. The reversal of 420841711 is 117148024.

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 420841711 - 2⁹ = 420841199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420841711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420841717) 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, 1090071 + ... + 1090456.

It is an arithmetic number, because the mean of its divisors is an integer number (105755608).

Almost surely, 2^420841711 is an apocalyptic number.

420841711 is a deficient number, since it is larger than the sum of its proper divisors (2180721).

420841711 is a wasteful number, since it uses less digits than its factorization.

420841711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180720.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 420841711 is about 20514.4268991361. The cubic root of 420841711 is about 749.3871799978.

Adding to 420841711 its reverse (117148024), we get a palindrome (537989735).

The spelling of 420841711 in words is "four hundred twenty million, eight hundred forty-one thousand, seven hundred eleven".