49986 has 12 divisors (see below), whose sum is σ = 108342. Its totient is φ = 16656.

The previous prime is 49957. The next prime is 49991. The reversal of 49986 is 68994.

It can be written as a sum of positive squares in only one way, i.e., 47961 + 2025 = 219^2 + 45^2 .

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 49986.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371 + ... + 1406.

2⁴⁹⁹⁸⁶ is an apocalyptic number.

49986 is an abundant number, since it is smaller than the sum of its proper divisors (58356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49986 is a wasteful number, since it uses less digits than its factorization.

49986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785 (or 2782 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 49986 is about 223.5754906066. The cubic root of 49986 is about 36.8368762360.

It can be divided in two parts, 499 and 86, that added together give a palindrome (585).

The spelling of 49986 in words is "forty-nine thousand, nine hundred eighty-six".