2211896 has 8 divisors (see below), whose sum is σ = 4147320. Its totient is φ = 1105944.

The previous prime is 2211893. The next prime is 2211919. The reversal of 2211896 is 6981122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138236 + ... + 138251.

It is an arithmetic number, because the mean of its divisors is an integer number (518415).

2^2211896 is an apocalyptic number.

It is an amenable number.

2211896 is a deficient number, since it is larger than the sum of its proper divisors (1935424).

2211896 is a wasteful number, since it uses less digits than its factorization.

2211896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276493 (or 276489 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 2211896 is about 1487.2444318269. The cubic root of 2211896 is about 130.2931451777.

The spelling of 2211896 in words is "two million, two hundred eleven thousand, eight hundred ninety-six".