428211 has 18 divisors (see below), whose sum is σ = 720252. Its totient is φ = 244440.

The previous prime is 428177. The next prime is 428221. The reversal of 428211 is 112824.

It is not a de Polignac number, because 428211 - 2⁶ = 428147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (40014).

2⁴²⁸²¹¹ is an apocalyptic number.

428211 is a deficient number, since it is larger than the sum of its proper divisors (292041).

428211 is a wasteful number, since it uses less digits than its factorization.

428211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 981 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 428211 is about 654.3783309371. The cubic root of 428211 is about 75.3736025252.

The spelling of 428211 in words is "four hundred twenty-eight thousand, two hundred eleven".