2219887 has 2 divisors, whose sum is σ = 2219888. Its totient is φ = 2219886.

The previous prime is 2219881. The next prime is 2219923. The reversal of 2219887 is 7889122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2219887 is a prime.

It is a d-powerful number, because it can be written as 2² + 2⁸ + 1 + 9³ + 8⁴ + 8⁷ + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2219881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109943 + 1109944.

It is an arithmetic number, because the mean of its divisors is an integer number (1109944).

2^2219887 is an apocalyptic number.

2219887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219887 is an equidigital number, since it uses as much as digits as its factorization.

2219887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 2219887 is about 1489.9285217755. The cubic root of 2219887 is about 130.4498615884.

The spelling of 2219887 in words is "two million, two hundred nineteen thousand, eight hundred eighty-seven".