49789 has 2 divisors, whose sum is σ = 49790. Its totient is φ = 49788.
The previous prime is 49787. The next prime is 49801. The reversal of 49789 is 98794.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 36100 + 13689 = 190^2 + 117^2 .
It is a cyclic number.
It is not a de Polignac number, because 49789 - 21 = 49787 is a prime.
Together with 49787, it forms a pair of twin primes.
It is a nialpdrome in base 15.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (49783) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24894 + 24895.
It is an arithmetic number, because the mean of its divisors is an integer number (24895).
249789 is an apocalyptic number.
It is an amenable number.
49789 is a deficient number, since it is larger than the sum of its proper divisors (1).
49789 is an equidigital number, since it uses as much as digits as its factorization.
49789 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 18144, while the sum is 37.
The square root of 49789 is about 223.1344885938. The cubic root of 49789 is about 36.7884198756.
It can be divided in two parts, 49 and 789, that added together give a palindrome (838).
The spelling of 49789 in words is "forty-nine thousand, seven hundred eighty-nine".
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