49916789 has 8 divisors (see below), whose sum is σ = 55491072. Its totient is φ = 44590320.

The previous prime is 49916753. The next prime is 49916821. The reversal of 49916789 is 98761994.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 49916789 - 2¹⁶ = 49851253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49916789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49916729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61529 + ... + 62334.

It is an arithmetic number, because the mean of its divisors is an integer number (6936384).

Almost surely, 2^49916789 is an apocalyptic number.

It is an amenable number.

49916789 is a deficient number, since it is larger than the sum of its proper divisors (5574283).

49916789 is a wasteful number, since it uses less digits than its factorization.

49916789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123907.

The product of its digits is 979776, while the sum is 53.

The square root of 49916789 is about 7065.1814555608. The cubic root of 49916789 is about 368.1986684247.

It can be divided in two parts, 49916 and 789, that added together give a palindrome (50705).

The spelling of 49916789 in words is "forty-nine million, nine hundred sixteen thousand, seven hundred eighty-nine".