189929673 has 12 divisors (see below), whose sum is σ = 278993520. Its totient is φ = 124473336.

The previous prime is 189929659. The next prime is 189929689. The reversal of 189929673 is 376929981.

It is not a de Polignac number, because 189929673 - 2⁹ = 189929161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189929633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178311 + ... + 179372.

It is an arithmetic number, because the mean of its divisors is an integer number (23249460).

Almost surely, 2^189929673 is an apocalyptic number.

It is an amenable number.

189929673 is a deficient number, since it is larger than the sum of its proper divisors (89063847).

189929673 is a wasteful number, since it uses less digits than its factorization.

189929673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357748 (or 357745 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 189929673 is about 13781.4974875737. The cubic root of 189929673 is about 574.8187688457.

The spelling of 189929673 in words is "one hundred eighty-nine million, nine hundred twenty-nine thousand, six hundred seventy-three".