48219989 has 2 divisors, whose sum is σ = 48219990. Its totient is φ = 48219988.

The previous prime is 48219949. The next prime is 48220001. The reversal of 48219989 is 98991284.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 4884100 = 6583^2 + 2210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48219989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48219949) 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, 24109994 + 24109995.

It is an arithmetic number, because the mean of its divisors is an integer number (24109995).

Almost surely, 2^48219989 is an apocalyptic number.

It is an amenable number.

48219989 is a deficient number, since it is larger than the sum of its proper divisors (1).

48219989 is an equidigital number, since it uses as much as digits as its factorization.

48219989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 48219989 is about 6944.0614196592. The cubic root of 48219989 is about 363.9784760650.

The spelling of 48219989 in words is "forty-eight million, two hundred nineteen thousand, nine hundred eighty-nine".