189628633 has 4 divisors (see below), whose sum is σ = 189736420. Its totient is φ = 189520848.

The previous prime is 189628627. The next prime is 189628639. The reversal of 189628633 is 336826981.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (189628627) and next prime (189628639).

It can be written as a sum of positive squares in 2 ways, for example, as 132066064 + 57562569 = 11492^2 + 7587^2 .

It is a cyclic number.

It is not a de Polignac number, because 189628633 - 2⁵ = 189628601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189628639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 51210 + ... + 54787.

It is an arithmetic number, because the mean of its divisors is an integer number (47434105).

Almost surely, 2^189628633 is an apocalyptic number.

It is an amenable number.

189628633 is a deficient number, since it is larger than the sum of its proper divisors (107787).

189628633 is a wasteful number, since it uses less digits than its factorization.

189628633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107786.

The product of its digits is 373248, while the sum is 46.

The square root of 189628633 is about 13770.5712662910. The cubic root of 189628633 is about 574.5149108525.

The spelling of 189628633 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, six hundred thirty-three".