420001711 has 4 divisors (see below), whose sum is σ = 444707712. Its totient is φ = 395295712.

The previous prime is 420001709. The next prime is 420001717. The reversal of 420001711 is 117100024.

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 420001711 - 2¹ = 420001709 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 (420001717) 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, 12352975 + ... + 12353008.

It is an arithmetic number, because the mean of its divisors is an integer number (111176928).

Almost surely, 2^420001711 is an apocalyptic number.

420001711 is a deficient number, since it is larger than the sum of its proper divisors (24706001).

420001711 is a wasteful number, since it uses less digits than its factorization.

420001711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24706000.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 420001711 is about 20493.9432760023. The cubic root of 420001711 is about 748.8882556618. Note that the first 3 decimals are identical.

Adding to 420001711 its reverse (117100024), we get a palindrome (537101735).

The spelling of 420001711 in words is "four hundred twenty million, one thousand, seven hundred eleven".