49889943 has 12 divisors (see below), whose sum is σ = 74388288. Its totient is φ = 32186880.

The previous prime is 49889923. The next prime is 49889969. The reversal of 49889943 is 34998894.

It is not a de Polignac number, because 49889943 - 2¹⁰ = 49888919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49889943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49889923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89130 + ... + 89687.

It is an arithmetic number, because the mean of its divisors is an integer number (6199024).

Almost surely, 2^49889943 is an apocalyptic number.

49889943 is a deficient number, since it is larger than the sum of its proper divisors (24498345).

49889943 is a wasteful number, since it uses less digits than its factorization.

49889943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178854 (or 178851 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 49889943 is about 7063.2813196134. The cubic root of 49889943 is about 368.1326489937.

The spelling of 49889943 in words is "forty-nine million, eight hundred eighty-nine thousand, nine hundred forty-three".