49839878 has 16 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 21923400.

The previous prime is 49839877. The next prime is 49839901. The reversal of 49839878 is 87893894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49839877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35858 + ... + 37221.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^49839878 is an apocalyptic number.

49839878 is a deficient number, since it is larger than the sum of its proper divisors (34348282).

49839878 is a wasteful number, since it uses less digits than its factorization.

49839878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73123.

The product of its digits is 3483648, while the sum is 56.

The square root of 49839878 is about 7059.7363973452. The cubic root of 49839878 is about 368.0094663208.

The spelling of 49839878 in words is "forty-nine million, eight hundred thirty-nine thousand, eight hundred seventy-eight".