188947916 has 6 divisors (see below), whose sum is σ = 330658860. Its totient is φ = 94473956.

The previous prime is 188947907. The next prime is 188947919. The reversal of 188947916 is 619749881.

188947916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (188947919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23618486 + ... + 23618493.

It is an arithmetic number, because the mean of its divisors is an integer number (55109810).

Almost surely, 2^188947916 is an apocalyptic number.

It is an amenable number.

188947916 is a deficient number, since it is larger than the sum of its proper divisors (141710944).

188947916 is a wasteful number, since it uses less digits than its factorization.

188947916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47236983 (or 47236981 counting only the distinct ones).

The product of its digits is 870912, while the sum is 53.

The square root of 188947916 is about 13745.8326775790. The cubic root of 188947916 is about 573.8266340585.

The spelling of 188947916 in words is "one hundred eighty-eight million, nine hundred forty-seven thousand, nine hundred sixteen".