49447771 has 2 divisors, whose sum is σ = 49447772. Its totient is φ = 49447770.

The previous prime is 49447757. The next prime is 49447793. The reversal of 49447771 is 17774494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49447771 - 2⁹ = 49447259 is a prime.

It is not a weakly prime, because it can be changed into another prime (49447471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24723885 + 24723886.

It is an arithmetic number, because the mean of its divisors is an integer number (24723886).

Almost surely, 2^49447771 is an apocalyptic number.

49447771 is a deficient number, since it is larger than the sum of its proper divisors (1).

49447771 is an equidigital number, since it uses as much as digits as its factorization.

49447771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 43.

The square root of 49447771 is about 7031.9109067166. The cubic root of 49447771 is about 367.0418397755.

The spelling of 49447771 in words is "forty-nine million, four hundred forty-seven thousand, seven hundred seventy-one".