189698233 has 4 divisors (see below), whose sum is σ = 190906660. Its totient is φ = 188489808.

The previous prime is 189698221. The next prime is 189698237. The reversal of 189698233 is 332896981.

189698233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332896981 = 83 ⋅4010807.

It can be written as a sum of positive squares in 2 ways, for example, as 54952569 + 134745664 = 7413^2 + 11608^2 .

It is a cyclic number.

It is not a de Polignac number, because 189698233 - 2¹³ = 189690041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189698237) 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, 603978 + ... + 604291.

It is an arithmetic number, because the mean of its divisors is an integer number (47726665).

Almost surely, 2^189698233 is an apocalyptic number.

It is an amenable number.

189698233 is a deficient number, since it is larger than the sum of its proper divisors (1208427).

189698233 is a wasteful number, since it uses less digits than its factorization.

189698233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208426.

The product of its digits is 559872, while the sum is 49.

The square root of 189698233 is about 13773.0981627229. The cubic root of 189698233 is about 574.5851909329.

The spelling of 189698233 in words is "one hundred eighty-nine million, six hundred ninety-eight thousand, two hundred thirty-three".