49877784 has 96 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 14884800.

The previous prime is 49877759. The next prime is 49877819. The reversal of 49877784 is 48777894.

49877784 is a `hidden beast` number, since 498 + 7 + 77 + 84 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 49877784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55789 + ... + 56675.

It is an arithmetic number, because the mean of its divisors is an integer number (1558440).

Almost surely, 2^49877784 is an apocalyptic number.

49877784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49877784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74805120).

49877784 is an abundant number, since it is smaller than the sum of its proper divisors (99732456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49877784 is a wasteful number, since it uses less digits than its factorization.

49877784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 974 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 49877784 is about 7062.4205482257. The cubic root of 49877784 is about 368.1027399025.

The spelling of 49877784 in words is "forty-nine million, eight hundred seventy-seven thousand, seven hundred eighty-four".