2219879 has 8 divisors (see below), whose sum is σ = 2317440. Its totient is φ = 2124000.

The previous prime is 2219869. The next prime is 2219881. The reversal of 2219879 is 9789122.

2219879 = T₂₃₆ + T₂₃₇ + ... + T₂₉₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2219879 - 2¹² = 2215783 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 (2219839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (289680).

2^2219879 is an apocalyptic number.

2219879 is a deficient number, since it is larger than the sum of its proper divisors (97561).

2219879 is a wasteful number, since it uses less digits than its factorization.

2219879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its digits is 18144, while the sum is 38.

The square root of 2219879 is about 1489.9258370805. The cubic root of 2219879 is about 130.4497048837.

The spelling of 2219879 in words is "two million, two hundred nineteen thousand, eight hundred seventy-nine".