421671211 has 16 divisors (see below), whose sum is σ = 459043200. Its totient is φ = 385031808.

The previous prime is 421671209. The next prime is 421671221. The reversal of 421671211 is 112176124.

It is a cyclic number.

It is not a de Polignac number, because 421671211 - 2¹ = 421671209 is a prime.

It is a super-2 number, since 2×421671211² = 355613220372413042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421671221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586110 + ... + 586828.

It is an arithmetic number, because the mean of its divisors is an integer number (28690200).

Almost surely, 2^421671211 is an apocalyptic number.

421671211 is a deficient number, since it is larger than the sum of its proper divisors (37371989).

421671211 is a wasteful number, since it uses less digits than its factorization.

421671211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158.

The product of its digits is 672, while the sum is 25.

The square root of 421671211 is about 20534.6344257696. The cubic root of 421671211 is about 749.8792166977.

The spelling of 421671211 in words is "four hundred twenty-one million, six hundred seventy-one thousand, two hundred eleven".