2087291 has 4 divisors (see below), whose sum is σ = 2090592. Its totient is φ = 2083992.

The previous prime is 2087287. The next prime is 2087297. The reversal of 2087291 is 1927802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1927802 = 2 ⋅963901.

It is a cyclic number.

It is not a de Polignac number, because 2087291 - 2² = 2087287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087297) 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, 371 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (522648).

2^2087291 is an apocalyptic number.

2087291 is a deficient number, since it is larger than the sum of its proper divisors (3301).

2087291 is an equidigital number, since it uses as much as digits as its factorization.

2087291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2087291 is about 1444.7459984371. The cubic root of 2087291 is about 127.7990621689.

The spelling of 2087291 in words is "two million, eighty-seven thousand, two hundred ninety-one".