2219889947 has 16 divisors (see below), whose sum is σ = 2603404800. Its totient is φ = 1871180640.

The previous prime is 2219889929. The next prime is 2219889953. The reversal of 2219889947 is 7499889122.

It is a cyclic number.

It is not a de Polignac number, because 2219889947 - 2¹⁴ = 2219873563 is a prime.

It is a super-2 number, since 2×2219889947² = 9855822753583325618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219889907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103172 + ... + 122817.

It is an arithmetic number, because the mean of its divisors is an integer number (162712800).

Almost surely, 2^2219889947 is an apocalyptic number.

2219889947 is a deficient number, since it is larger than the sum of its proper divisors (383514853).

2219889947 is a wasteful number, since it uses less digits than its factorization.

2219889947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226066.

The product of its digits is 5225472, while the sum is 59.

The square root of 2219889947 is about 47115.7080706637. The cubic root of 2219889947 is about 1304.4991931444.

The spelling of 2219889947 in words is "two billion, two hundred nineteen million, eight hundred eighty-nine thousand, nine hundred forty-seven".