189628593 has 32 divisors (see below), whose sum is σ = 326108160. Its totient is φ = 95108160.

The previous prime is 189628561. The next prime is 189628601. The reversal of 189628593 is 395826981.

It is a happy number.

It is not a de Polignac number, because 189628593 - 2⁵ = 189628561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189628093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7455 + ... + 20852.

It is an arithmetic number, because the mean of its divisors is an integer number (10190880).

Almost surely, 2^189628593 is an apocalyptic number.

It is an amenable number.

189628593 is a deficient number, since it is larger than the sum of its proper divisors (136479567).

189628593 is a wasteful number, since it uses less digits than its factorization.

189628593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28357.

The product of its digits is 933120, while the sum is 51.

The square root of 189628593 is about 13770.5698139184. The cubic root of 189628593 is about 574.5148704567.

It can be divided in two parts, 1896285 and 93, that added together give a triangular number (1896378 = T₁₉₄₇).

The spelling of 189628593 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, five hundred ninety-three".