7873889922 has 12 divisors (see below), whose sum is σ = 17060094870. Its totient is φ = 2624629968.

The previous prime is 7873889911. The next prime is 7873889923. The reversal of 7873889922 is 2299883787.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6407842401 + 1466047521 = 80049^2 + 38289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7873889922.

It is not an unprimeable number, because it can be changed into a prime (7873889923) 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 5 ways as a sum of consecutive naturals, for example, 218719147 + ... + 218719182.

Almost surely, 2^7873889922 is an apocalyptic number.

7873889922 is an abundant number, since it is smaller than the sum of its proper divisors (9186204948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7873889922 is a wasteful number, since it uses less digits than its factorization.

7873889922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437438337 (or 437438334 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 7873889922 is about 88734.9419450985. The cubic root of 7873889922 is about 1989.4351167222.

The spelling of 7873889922 in words is "seven billion, eight hundred seventy-three million, eight hundred eighty-nine thousand, nine hundred twenty-two".