189679 has 10 divisors (see below), whose sum is σ = 224080. Its totient is φ = 160524.

The previous prime is 189671. The next prime is 189691. The reversal of 189679 is 976981.

It is not a de Polignac number, because 189679 - 2³ = 189671 is a prime.

It is a Duffinian number.

189679 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189671) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2362 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (22408).

2¹⁸⁹⁶⁷⁹ is an apocalyptic number.

189679 is a deficient number, since it is larger than the sum of its proper divisors (34401).

189679 is an frugal number, since it uses more digits than its factorization.

189679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 86 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 189679 is about 435.5215264485. The cubic root of 189679 is about 57.4565771721.

It can be divided in two parts, 189 and 679, that added together give a palindrome (868).

The spelling of 189679 in words is "one hundred eighty-nine thousand, six hundred seventy-nine".