2187297 has 32 divisors (see below), whose sum is σ = 3778560. Its totient is φ = 1224720.

The previous prime is 2187293. The next prime is 2187301. The reversal of 2187297 is 7927812.

It is an interprime number because it is at equal distance from previous prime (2187293) and next prime (2187301).

It is not a de Polignac number, because 2187297 - 2² = 2187293 is a prime.

It is a super-3 number, since 3×2187297³ = 31393846221433341219, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2187293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13338 + ... + 13500.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

2^2187297 is an apocalyptic number.

2187297 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2187297 is a deficient number, since it is larger than the sum of its proper divisors (1591263).

2187297 is a wasteful number, since it uses less digits than its factorization.

2187297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2187297 is about 1478.9513176572. The cubic root of 2187297 is about 129.8083368933.

The spelling of 2187297 in words is "two million, one hundred eighty-seven thousand, two hundred ninety-seven".