211796 has 12 divisors (see below), whose sum is σ = 399252. Its totient is φ = 97728.

The previous prime is 211789. The next prime is 211801. The reversal of 211796 is 697112.

211796 = T₆₃ + T₆₄ + ... + T₁₁₄.

It can be written as a sum of positive squares in 2 ways, for example, as 26896 + 184900 = 164^2 + 430^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

211796 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (33271).

2²¹¹⁷⁹⁶ is an apocalyptic number.

211796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

211796 is a deficient number, since it is larger than the sum of its proper divisors (187456).

211796 is a wasteful number, since it uses less digits than its factorization.

211796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090 (or 4088 counting only the distinct ones).

The product of its digits is 756, while the sum is 26.

The square root of 211796 is about 460.2129941668. The cubic root of 211796 is about 59.6081876955.

The spelling of 211796 in words is "two hundred eleven thousand, seven hundred ninety-six".