2219473 has 4 divisors (see below), whose sum is σ = 2222500. Its totient is φ = 2216448.

The previous prime is 2219471. The next prime is 2219489. The reversal of 2219473 is 3749122.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 1203409 = 1008^2 + 1097^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219473 - 2¹ = 2219471 is a prime.

It is an Ulam number.

It is a Duffinian number.

2219473 is a lucky 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, 361 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (555625).

2^2219473 is an apocalyptic number.

It is an amenable number.

2219473 is a deficient number, since it is larger than the sum of its proper divisors (3027).

2219473 is a wasteful number, since it uses less digits than its factorization.

2219473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026.

The product of its digits is 3024, while the sum is 28.

The square root of 2219473 is about 1489.7895824579. The cubic root of 2219473 is about 130.4417516260.

The spelling of 2219473 in words is "two million, two hundred nineteen thousand, four hundred seventy-three".