49889173 has 2 divisors, whose sum is σ = 49889174. Its totient is φ = 49889172.

The previous prime is 49889171. The next prime is 49889179. The reversal of 49889173 is 37198894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48191364 + 1697809 = 6942^2 + 1303^2 .

It is a cyclic number.

It is not a de Polignac number, because 49889173 - 2¹ = 49889171 is a prime.

Together with 49889171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49889171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24944586 + 24944587.

It is an arithmetic number, because the mean of its divisors is an integer number (24944587).

Almost surely, 2^49889173 is an apocalyptic number.

It is an amenable number.

49889173 is a deficient number, since it is larger than the sum of its proper divisors (1).

49889173 is an equidigital number, since it uses as much as digits as its factorization.

49889173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 49889173 is about 7063.2268121589. The cubic root of 49889173 is about 368.1307550675.

It can be divided in two parts, 4988 and 9173, that added together give a square (14161 = 119²).

The spelling of 49889173 in words is "forty-nine million, eight hundred eighty-nine thousand, one hundred seventy-three".