189397214 has 8 divisors (see below), whose sum is σ = 284226600. Its totient is φ = 94655016.

The previous prime is 189397213. The next prime is 189397217. The reversal of 189397214 is 412793981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189397213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16064 + ... + 25235.

It is an arithmetic number, because the mean of its divisors is an integer number (35528325).

Almost surely, 2^189397214 is an apocalyptic number.

189397214 is a deficient number, since it is larger than the sum of its proper divisors (94829386).

189397214 is a wasteful number, since it uses less digits than its factorization.

189397214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43594.

The product of its digits is 108864, while the sum is 44.

The square root of 189397214 is about 13762.1660359116. The cubic root of 189397214 is about 574.2811068722.

The spelling of 189397214 in words is "one hundred eighty-nine million, three hundred ninety-seven thousand, two hundred fourteen".