48728189 has 2 divisors, whose sum is σ = 48728190. Its totient is φ = 48728188.

The previous prime is 48728117. The next prime is 48728209. The reversal of 48728189 is 98182784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38962564 + 9765625 = 6242^2 + 3125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48728189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48728089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24364094 + 24364095.

It is an arithmetic number, because the mean of its divisors is an integer number (24364095).

Almost surely, 2^48728189 is an apocalyptic number.

It is an amenable number.

48728189 is a deficient number, since it is larger than the sum of its proper divisors (1).

48728189 is an equidigital number, since it uses as much as digits as its factorization.

48728189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 47.

The square root of 48728189 is about 6980.5579289911. The cubic root of 48728189 is about 365.2526904745.

The spelling of 48728189 in words is "forty-eight million, seven hundred twenty-eight thousand, one hundred eighty-nine".