49783871 has 4 divisors (see below), whose sum is σ = 52712352. Its totient is φ = 46855392.

The previous prime is 49783849. The next prime is 49783901. The reversal of 49783871 is 17838794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49783871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49783171) 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 3 ways as a sum of consecutive naturals, for example, 1464215 + ... + 1464248.

It is an arithmetic number, because the mean of its divisors is an integer number (13178088).

Almost surely, 2^49783871 is an apocalyptic number.

49783871 is a deficient number, since it is larger than the sum of its proper divisors (2928481).

49783871 is a wasteful number, since it uses less digits than its factorization.

49783871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928480.

The product of its digits is 338688, while the sum is 47.

The square root of 49783871 is about 7055.7686328280. The cubic root of 49783871 is about 367.8715658260.

The spelling of 49783871 in words is "forty-nine million, seven hundred eighty-three thousand, eight hundred seventy-one".