3888889667 has 4 divisors (see below), whose sum is σ = 4188035040. Its totient is φ = 3589744296.

The previous prime is 3888889661. The next prime is 3888889709. The reversal of 3888889667 is 7669888883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3888889667 - 2¹⁴ = 3888873283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3888889667.

It is not an unprimeable number, because it can be changed into a prime (3888889661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149572667 + ... + 149572692.

It is an arithmetic number, because the mean of its divisors is an integer number (1047008760).

Almost surely, 2^3888889667 is an apocalyptic number.

3888889667 is a deficient number, since it is larger than the sum of its proper divisors (299145373).

3888889667 is a wasteful number, since it uses less digits than its factorization.

3888889667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299145372.

The product of its digits is 222953472, while the sum is 71.

The square root of 3888889667 is about 62360.9626850003. The cubic root of 3888889667 is about 1572.5647649881.

The spelling of 3888889667 in words is "three billion, eight hundred eighty-eight million, eight hundred eighty-nine thousand, six hundred sixty-seven".