3888889172 has 24 divisors (see below), whose sum is σ = 7787095680. Its totient is φ = 1664670240.

The previous prime is 3888889171. The next prime is 3888889189. The reversal of 3888889172 is 2719888883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888889171) 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, 59279 + ... + 106262.

It is an arithmetic number, because the mean of its divisors is an integer number (324462320).

Almost surely, 2^3888889172 is an apocalyptic number.

It is an amenable number.

3888889172 is an abundant number, since it is smaller than the sum of its proper divisors (3898206508).

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

3888889172 is a wasteful number, since it uses less digits than its factorization.

3888889172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166391 (or 166389 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 62.

The square root of 3888889172 is about 62360.9587161711. The cubic root of 3888889172 is about 1572.5646982664.

The spelling of 3888889172 in words is "three billion, eight hundred eighty-eight million, eight hundred eighty-nine thousand, one hundred seventy-two".