2219479 has 4 divisors (see below), whose sum is σ = 2222584. Its totient is φ = 2216376.

The previous prime is 2219471. The next prime is 2219489. The reversal of 2219479 is 9749122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9749122 = 2 ⋅4874561.

It is a cyclic number.

It is not a de Polignac number, because 2219479 - 2³ = 2219471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219471) 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, 124 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (555646).

2^2219479 is an apocalyptic number.

2219479 is a deficient number, since it is larger than the sum of its proper divisors (3105).

2219479 is a wasteful number, since it uses less digits than its factorization.

2219479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104.

The product of its digits is 9072, while the sum is 34.

The square root of 2219479 is about 1489.7915961637. The cubic root of 2219479 is about 130.4418691689.

The spelling of 2219479 in words is "two million, two hundred nineteen thousand, four hundred seventy-nine".