189899696 has 90 divisors (see below), whose sum is σ = 441530892. Its totient is φ = 78886080.

The previous prime is 189899687. The next prime is 189899711. The reversal of 189899696 is 696998981.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 1449551 + ... + 1449681.

Almost surely, 2^189899696 is an apocalyptic number.

189899696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189899696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220765446).

189899696 is an abundant number, since it is smaller than the sum of its proper divisors (251631196).

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

189899696 is a wasteful number, since it uses less digits than its factorization.

189899696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 183 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 65.

The square root of 189899696 is about 13780.4098632806. The cubic root of 189899696 is about 574.7885256358.

The spelling of 189899696 in words is "one hundred eighty-nine million, eight hundred ninety-nine thousand, six hundred ninety-six".