2088491 has 4 divisors (see below), whose sum is σ = 2092512. Its totient is φ = 2084472.

The previous prime is 2088487. The next prime is 2088497. The reversal of 2088491 is 1948802.

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: 1948802 = 2 ⋅974401.

It is a cyclic number.

It is not a de Polignac number, because 2088491 - 2² = 2088487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2088497) 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, 1091 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (523128).

2^2088491 is an apocalyptic number.

2088491 is a deficient number, since it is larger than the sum of its proper divisors (4021).

2088491 is an equidigital number, since it uses as much as digits as its factorization.

2088491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2088491 is about 1445.1612366791. The cubic root of 2088491 is about 127.8235483721.

The spelling of 2088491 in words is "two million, eighty-eight thousand, four hundred ninety-one".