49989777 has 4 divisors (see below), whose sum is σ = 66653040. Its totient is φ = 33326516.

The previous prime is 49989773. The next prime is 49989791. The reversal of 49989777 is 77798994.

49989777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49989777 - 2² = 49989773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49989777.

It is not an unprimeable number, because it can be changed into a prime (49989773) 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 in 3 ways as a sum of consecutive naturals, for example, 8331627 + ... + 8331632.

It is an arithmetic number, because the mean of its divisors is an integer number (16663260).

Almost surely, 2^49989777 is an apocalyptic number.

It is an amenable number.

49989777 is a deficient number, since it is larger than the sum of its proper divisors (16663263).

49989777 is a wasteful number, since it uses less digits than its factorization.

49989777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16663262.

The product of its digits is 8001504, while the sum is 60.

The square root of 49989777 is about 7070.3448996495. The cubic root of 49989777 is about 368.3780402500.

The spelling of 49989777 in words is "forty-nine million, nine hundred eighty-nine thousand, seven hundred seventy-seven".