49816391 has 2 divisors, whose sum is σ = 49816392. Its totient is φ = 49816390.

The previous prime is 49816363. The next prime is 49816399. The reversal of 49816391 is 19361894.

49816391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49816391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49816399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24908195 + 24908196.

It is an arithmetic number, because the mean of its divisors is an integer number (24908196).

Almost surely, 2^49816391 is an apocalyptic number.

49816391 is a deficient number, since it is larger than the sum of its proper divisors (1).

49816391 is an equidigital number, since it uses as much as digits as its factorization.

49816391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 49816391 is about 7058.0727539464. The cubic root of 49816391 is about 367.9516491887.

The spelling of 49816391 in words is "forty-nine million, eight hundred sixteen thousand, three hundred ninety-one".