2169087 has 4 divisors (see below), whose sum is σ = 2892120. Its totient is φ = 1446056.

The previous prime is 2169073. The next prime is 2169109. The reversal of 2169087 is 7809612.

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

It is a cyclic number.

It is not a de Polignac number, because 2169087 - 2⁴ = 2169071 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169007) 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, 361512 + ... + 361517.

It is an arithmetic number, because the mean of its divisors is an integer number (723030).

2^2169087 is an apocalyptic number.

2169087 is a deficient number, since it is larger than the sum of its proper divisors (723033).

2169087 is an equidigital number, since it uses as much as digits as its factorization.

2169087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723032.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2169087 is about 1472.7820612704. The cubic root of 2169087 is about 129.4470995353.

The spelling of 2169087 in words is "two million, one hundred sixty-nine thousand, eighty-seven".