2791219 has 4 divisors (see below), whose sum is σ = 2802096. Its totient is φ = 2780344.

The previous prime is 2791199. The next prime is 2791237. The reversal of 2791219 is 9121972.

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

It is a cyclic number.

It is not a de Polignac number, because 2791219 - 2⁷ = 2791091 is a prime.

It is a super-2 number, since 2×2791219² = 15581807011922, which contains 22 as substring.

It is a Duffinian number.

2791219 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2792219) 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, 5044 + ... + 5569.

It is an arithmetic number, because the mean of its divisors is an integer number (700524).

2^2791219 is an apocalyptic number.

2791219 is a deficient number, since it is larger than the sum of its proper divisors (10877).

2791219 is a wasteful number, since it uses less digits than its factorization.

2791219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10876.

The product of its digits is 2268, while the sum is 31.

The square root of 2791219 is about 1670.6941671054. The cubic root of 2791219 is about 140.7984814693.

The spelling of 2791219 in words is "two million, seven hundred ninety-one thousand, two hundred nineteen".