2087197 has 4 divisors (see below), whose sum is σ = 2385376. Its totient is φ = 1789020.

The previous prime is 2087179. The next prime is 2087203. The reversal of 2087197 is 7917802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2087197 - 2⁷ = 2087069 is a prime.

2087197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087147) 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, 149079 + ... + 149092.

It is an arithmetic number, because the mean of its divisors is an integer number (596344).

2^2087197 is an apocalyptic number.

It is an amenable number.

2087197 is a deficient number, since it is larger than the sum of its proper divisors (298179).

2087197 is an equidigital number, since it uses as much as digits as its factorization.

2087197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298178.

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

The square root of 2087197 is about 1444.7134664009. The cubic root of 2087197 is about 127.7971436866.

The spelling of 2087197 in words is "two million, eighty-seven thousand, one hundred ninety-seven".