2108872 has 8 divisors (see below), whose sum is σ = 3954150. Its totient is φ = 1054432.

The previous prime is 2108857. The next prime is 2108879. The reversal of 2108872 is 2788012.

It can be written as a sum of positive squares in only one way, i.e., 2090916 + 17956 = 1446^2 + 134^2 .

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

It is a super-2 number, since 2×2108872² = 8894682224768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2108872.

It is not an unprimeable number, because it can be changed into a prime (2108879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131797 + ... + 131812.

2^2108872 is an apocalyptic number.

It is an amenable number.

2108872 is a deficient number, since it is larger than the sum of its proper divisors (1845278).

2108872 is a wasteful number, since it uses less digits than its factorization.

2108872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263615 (or 263611 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2108872 is about 1452.1955791146. The cubic root of 2108872 is about 128.2380012004.

The spelling of 2108872 in words is "two million, one hundred eight thousand, eight hundred seventy-two".