49779784 has 8 divisors (see below), whose sum is σ = 93337110. Its totient is φ = 24889888.

The previous prime is 49779761. The next prime is 49779787. The reversal of 49779784 is 48797794.

49779784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 77284 = 7050^2 + 278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (49779787) 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, 3111229 + ... + 3111244.

Almost surely, 2^49779784 is an apocalyptic number.

It is an amenable number.

49779784 is a deficient number, since it is larger than the sum of its proper divisors (43557326).

49779784 is a wasteful number, since it uses less digits than its factorization.

49779784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222479 (or 6222475 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 55.

The square root of 49779784 is about 7055.4790057090. The cubic root of 49779784 is about 367.8614987621.

The spelling of 49779784 in words is "forty-nine million, seven hundred seventy-nine thousand, seven hundred eighty-four".