189693898 has 16 divisors (see below), whose sum is σ = 300554496. Its totient is φ = 89651520.

The previous prime is 189693893. The next prime is 189693937. The reversal of 189693898 is 898396981.

It is not an unprimeable number, because it can be changed into a prime (189693893) 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, 32911 + ... + 38242.

It is an arithmetic number, because the mean of its divisors is an integer number (18784656).

Almost surely, 2^189693898 is an apocalyptic number.

189693898 is a deficient number, since it is larger than the sum of its proper divisors (110860598).

189693898 is a wasteful number, since it uses less digits than its factorization.

189693898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71229.

The product of its digits is 6718464, while the sum is 61.

The square root of 189693898 is about 13772.9407898241. The cubic root of 189693898 is about 574.5808140765.

The spelling of 189693898 in words is "one hundred eighty-nine million, six hundred ninety-three thousand, eight hundred ninety-eight".