2090287 has 4 divisors (see below), whose sum is σ = 2124616. Its totient is φ = 2055960.

The previous prime is 2090281. The next prime is 2090317. The reversal of 2090287 is 7820902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7820902 = 2 ⋅3910451.

It is a cyclic number.

It is not a de Polignac number, because 2090287 - 2³ = 2090279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090281) 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, 17073 + ... + 17194.

It is an arithmetic number, because the mean of its divisors is an integer number (531154).

2^2090287 is an apocalyptic number.

2090287 is a deficient number, since it is larger than the sum of its proper divisors (34329).

2090287 is an equidigital number, since it uses as much as digits as its factorization.

2090287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34328.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2090287 is about 1445.7824870982. The cubic root of 2090287 is about 127.8601785384.

The spelling of 2090287 in words is "two million, ninety thousand, two hundred eighty-seven".