421672211 has 2 divisors, whose sum is σ = 421672212. Its totient is φ = 421672210.

The previous prime is 421672183. The next prime is 421672243. The reversal of 421672211 is 112276124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421672211 - 2¹⁴ = 421655827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421672291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210836105 + 210836106.

It is an arithmetic number, because the mean of its divisors is an integer number (210836106).

Almost surely, 2^421672211 is an apocalyptic number.

421672211 is a deficient number, since it is larger than the sum of its proper divisors (1).

421672211 is an equidigital number, since it uses as much as digits as its factorization.

421672211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 421672211 is about 20534.6587748616. The cubic root of 421672211 is about 749.8798094808.

The spelling of 421672211 in words is "four hundred twenty-one million, six hundred seventy-two thousand, two hundred eleven".