39849 has 8 divisors (see below), whose sum is σ = 54720. Its totient is φ = 25776.

The previous prime is 39847. The next prime is 39857. The reversal of 39849 is 94893.

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

It is not a de Polignac number, because 39849 - 2¹ = 39847 is a prime.

It is a Curzon number.

39849 is a lucky number.

It is a plaindrome in base 5.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (39841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69 + ... + 290.

It is an arithmetic number, because the mean of its divisors is an integer number (6840).

2³⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

39849 is a deficient number, since it is larger than the sum of its proper divisors (14871).

39849 is a wasteful number, since it uses less digits than its factorization.

39849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its digits is 7776, while the sum is 33.

The square root of 39849 is about 199.6221430603. The cubic root of 39849 is about 34.1564302734.

It can be divided in two parts, 3984 and 9, that added together give a palindrome (3993).

The spelling of 39849 in words is "thirty-nine thousand, eight hundred forty-nine".