49789171 has 2 divisors, whose sum is σ = 49789172. Its totient is φ = 49789170.

The previous prime is 49789169. The next prime is 49789199. The reversal of 49789171 is 17198794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49789171 - 2¹ = 49789169 is a prime.

Together with 49789169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49789111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24894585 + 24894586.

It is an arithmetic number, because the mean of its divisors is an integer number (24894586).

Almost surely, 2^49789171 is an apocalyptic number.

49789171 is a deficient number, since it is larger than the sum of its proper divisors (1).

49789171 is an equidigital number, since it uses as much as digits as its factorization.

49789171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 46.

The square root of 49789171 is about 7056.1442020412. The cubic root of 49789171 is about 367.8846199208.

The spelling of 49789171 in words is "forty-nine million, seven hundred eighty-nine thousand, one hundred seventy-one".