48217621 has 2 divisors, whose sum is σ = 48217622. Its totient is φ = 48217620.

The previous prime is 48217607. The next prime is 48217639. The reversal of 48217621 is 12671284.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48024900 + 192721 = 6930^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 48217621 - 2⁹ = 48217109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48217601) 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, 24108810 + 24108811.

It is an arithmetic number, because the mean of its divisors is an integer number (24108811).

Almost surely, 2^48217621 is an apocalyptic number.

It is an amenable number.

48217621 is a deficient number, since it is larger than the sum of its proper divisors (1).

48217621 is an equidigital number, since it uses as much as digits as its factorization.

48217621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 48217621 is about 6943.8909121616. The cubic root of 48217621 is about 363.9725178503.

The spelling of 48217621 in words is "forty-eight million, two hundred seventeen thousand, six hundred twenty-one".