2187369 has 12 divisors (see below), whose sum is σ = 3297216. Its totient is φ = 1394712.

The previous prime is 2187359. The next prime is 2187379. The reversal of 2187369 is 9637812.

It is an interprime number because it is at equal distance from previous prime (2187359) and next prime (2187379).

It is not a de Polignac number, because 2187369 - 2⁸ = 2187113 is a prime.

It is a super-2 number, since 2×2187369² = 9569166284322, which contains 22 as substring.

It is a Curzon number.

2187369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2187319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5077 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (274768).

2^2187369 is an apocalyptic number.

It is an amenable number.

2187369 is a deficient number, since it is larger than the sum of its proper divisors (1109847).

2187369 is a wasteful number, since it uses less digits than its factorization.

2187369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596 (or 10593 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2187369 is about 1478.9756590289. The cubic root of 2187369 is about 129.8097611927.

It can be divided in two parts, 2187 and 369, that added together give a triangular number (2556 = T₇₁).

The spelling of 2187369 in words is "two million, one hundred eighty-seven thousand, three hundred sixty-nine".