189849 has 12 divisors (see below), whose sum is σ = 278768. Its totient is φ = 114840.

The previous prime is 189823. The next prime is 189851. The reversal of 189849 is 948981.

It is not a de Polignac number, because 189849 - 2⁵ = 189817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189859) 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, 102 + ... + 624.

2¹⁸⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

189849 is a deficient number, since it is larger than the sum of its proper divisors (88919).

189849 is a wasteful number, since it uses less digits than its factorization.

189849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 537 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 189849 is about 435.7166510474. The cubic root of 189849 is about 57.4737372188.

It can be divided in two parts, 189 and 849, that multiplied together give a triangular number (160461 = T₅₆₆).

The spelling of 189849 in words is "one hundred eighty-nine thousand, eight hundred forty-nine".