211648 has 14 divisors (see below), whose sum is σ = 420116. Its totient is φ = 105792.

The previous prime is 211643. The next prime is 211657. The reversal of 211648 is 846112.

It is not an unprimeable number, because it can be changed into a prime (211643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590 + ... + 1717.

2²¹¹⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

211648 is a deficient number, since it is larger than the sum of its proper divisors (208468).

211648 is an equidigital number, since it uses as much as digits as its factorization.

211648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319 (or 3309 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 211648 is about 460.0521709546. The cubic root of 211648 is about 59.5943000119.

The spelling of 211648 in words is "two hundred eleven thousand, six hundred forty-eight".