189866996 has 12 divisors (see below), whose sum is σ = 362473440. Its totient is φ = 86303160.

The previous prime is 189866987. The next prime is 189867037. The reversal of 189866996 is 699668981.

189866996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157536 + ... + 2157623.

It is an arithmetic number, because the mean of its divisors is an integer number (30206120).

Almost surely, 2^189866996 is an apocalyptic number.

It is an amenable number.

189866996 is a deficient number, since it is larger than the sum of its proper divisors (172606444).

189866996 is a wasteful number, since it uses less digits than its factorization.

189866996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315174 (or 4315172 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 62.

The square root of 189866996 is about 13779.2233453123. The cubic root of 189866996 is about 574.7555316147.

The spelling of 189866996 in words is "one hundred eighty-nine million, eight hundred sixty-six thousand, nine hundred ninety-six".