189893517 has 8 divisors (see below), whose sum is σ = 276208800. Its totient is φ = 115086960.

The previous prime is 189893503. The next prime is 189893521. The reversal of 189893517 is 715398981.

189893517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189893517 - 2²⁴ = 173116301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189893517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189893567) 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, 2877142 + ... + 2877207.

It is an arithmetic number, because the mean of its divisors is an integer number (34526100).

Almost surely, 2^189893517 is an apocalyptic number.

It is an amenable number.

189893517 is a deficient number, since it is larger than the sum of its proper divisors (86315283).

189893517 is a wasteful number, since it uses less digits than its factorization.

189893517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754363.

The product of its digits is 544320, while the sum is 51.

The square root of 189893517 is about 13780.1856663835. The cubic root of 189893517 is about 574.7822913678.

The spelling of 189893517 in words is "one hundred eighty-nine million, eight hundred ninety-three thousand, five hundred seventeen".