49877209 has 2 divisors, whose sum is σ = 49877210. Its totient is φ = 49877208.

The previous prime is 49877189. The next prime is 49877227. The reversal of 49877209 is 90277894.

49877209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32262400 + 17614809 = 5680^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 49877209 - 2¹⁵ = 49844441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49877239) 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, 24938604 + 24938605.

It is an arithmetic number, because the mean of its divisors is an integer number (24938605).

Almost surely, 2^49877209 is an apocalyptic number.

It is an amenable number.

49877209 is a deficient number, since it is larger than the sum of its proper divisors (1).

49877209 is an equidigital number, since it uses as much as digits as its factorization.

49877209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 49877209 is about 7062.3798396858. The cubic root of 49877209 is about 368.1013253790.

It can be divided in two parts, 49877 and 209, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 49877209 in words is "forty-nine million, eight hundred seventy-seven thousand, two hundred nine".