2911323 has 4 divisors (see below), whose sum is σ = 3881768. Its totient is φ = 1940880.

The previous prime is 2911309. The next prime is 2911327. The reversal of 2911323 is 3231192.

It is a happy number.

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

It is not a de Polignac number, because 2911323 - 2⁵ = 2911291 is a prime.

It is a super-2 number, since 2×2911323² = 16951603220658, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2911323 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2911323.

It is not an unprimeable number, because it can be changed into a prime (2911327) 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, 485218 + ... + 485223.

It is an arithmetic number, because the mean of its divisors is an integer number (970442).

2^2911323 is an apocalyptic number.

2911323 is a deficient number, since it is larger than the sum of its proper divisors (970445).

2911323 is an equidigital number, since it uses as much as digits as its factorization.

2911323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970444.

The product of its digits is 324, while the sum is 21.

The square root of 2911323 is about 1706.2599450260. The cubic root of 2911323 is about 142.7896723773.

The spelling of 2911323 in words is "two million, nine hundred eleven thousand, three hundred twenty-three".