2097187 has 4 divisors (see below), whose sum is σ = 2141856. Its totient is φ = 2052520.

The previous prime is 2097169. The next prime is 2097211. The reversal of 2097187 is 7817902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2097187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2097287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22264 + ... + 22357.

It is an arithmetic number, because the mean of its divisors is an integer number (535464).

2^2097187 is an apocalyptic number.

2097187 is a deficient number, since it is larger than the sum of its proper divisors (44669).

2097187 is an equidigital number, since it uses as much as digits as its factorization.

2097187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44668.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2097187 is about 1448.1667721640. The cubic root of 2097187 is about 128.0007120729. Note that the first 3 decimals are identical.

It can be divided in two parts, 209 and 7187, that added together give a square (7396 = 86²).

The spelling of 2097187 in words is "two million, ninety-seven thousand, one hundred eighty-seven".