49991086 has 16 divisors (see below), whose sum is σ = 76454928. Its totient is φ = 24508800.

The previous prime is 49991077. The next prime is 49991089. The reversal of 49991086 is 68019994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49991089) 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, 72001 + ... + 72691.

It is an arithmetic number, because the mean of its divisors is an integer number (4778433).

Almost surely, 2^49991086 is an apocalyptic number.

49991086 is a deficient number, since it is larger than the sum of its proper divisors (26463842).

49991086 is a wasteful number, since it uses less digits than its factorization.

49991086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49991086 is about 7070.4374687851. The cubic root of 49991086 is about 368.3812555917.

The spelling of 49991086 in words is "forty-nine million, nine hundred ninety-one thousand, eighty-six".