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49829 = 133833

49829 has 4 divisors (see below), whose sum is σ = 53676. Its totient is φ = 45984.

The previous prime is 49823. The next prime is 49831. The reversal of 49829 is 92894.

It can be divided in two parts, 49 and 829, that added together give a palindrome (878).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92894 = 246447.

It can be written as a sum of positive squares in 2 ways, for example, as 9025 + 40804 = 95^2 + 202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49829 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 49795 and 49804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904 + ... + 1929.

It is an arithmetic number, because the mean of its divisors is an integer number (13419).

249829 is an apocalyptic number.

It is an amenable number.

49829 is a deficient number, since it is larger than the sum of its proper divisors (3847).

49829 is a wasteful number, since it uses less digits than its factorization.

49829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846.

The product of its digits is 5184, while the sum is 32.

The square root of 49829 is about 223.2241026413. The cubic root of 49829 is about 36.7982690585.

The spelling of 49829 in words is "forty-nine thousand, eight hundred twenty-nine".

Divisors: 1 13 3833 49829