49983813 has 24 divisors (see below), whose sum is σ = 82910880. Its totient is φ = 28697760.

The previous prime is 49983799. The next prime is 49983821. The reversal of 49983813 is 31838994.

49983813 is a `hidden beast` number, since 499 + 83 + 81 + 3 = 666.

It is not a de Polignac number, because 49983813 - 2¹⁰ = 49982789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49983833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11406 + ... + 15167.

It is an arithmetic number, because the mean of its divisors is an integer number (3454620).

Almost surely, 2^49983813 is an apocalyptic number.

It is an amenable number.

49983813 is a deficient number, since it is larger than the sum of its proper divisors (32927067).

49983813 is a wasteful number, since it uses less digits than its factorization.

49983813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26609 (or 26606 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 49983813 is about 7069.9231254661. The cubic root of 49983813 is about 368.3633899612.

The spelling of 49983813 in words is "forty-nine million, nine hundred eighty-three thousand, eight hundred thirteen".