189417 has 8 divisors (see below), whose sum is σ = 255424. Its totient is φ = 124848.

The previous prime is 189407. The next prime is 189421. The reversal of 189417 is 714981.

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

It is not a de Polignac number, because 189417 - 2⁴ = 189401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (31928).

2¹⁸⁹⁴¹⁷ is an apocalyptic number.

It is an amenable number.

189417 is a deficient number, since it is larger than the sum of its proper divisors (66007).

189417 is a wasteful number, since it uses less digits than its factorization.

189417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its digits is 2016, while the sum is 30.

The square root of 189417 is about 435.2206337020. The cubic root of 189417 is about 57.4301104228.

It can be divided in two parts, 189 and 417, that added together give a palindrome (606).

The spelling of 189417 in words is "one hundred eighty-nine thousand, four hundred seventeen".