2099271 has 4 divisors (see below), whose sum is σ = 2799032. Its totient is φ = 1399512.

The previous prime is 2099263. The next prime is 2099287. The reversal of 2099271 is 1729902.

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

It is not a de Polignac number, because 2099271 - 2³ = 2099263 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099221) 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, 349876 + ... + 349881.

It is an arithmetic number, because the mean of its divisors is an integer number (699758).

2^2099271 is an apocalyptic number.

2099271 is a deficient number, since it is larger than the sum of its proper divisors (699761).

2099271 is an equidigital number, since it uses as much as digits as its factorization.

2099271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699760.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 2099271 is about 1448.8861238897. The cubic root of 2099271 is about 128.0430966534.

The spelling of 2099271 in words is "two million, ninety-nine thousand, two hundred seventy-one".