48789281 has 4 divisors (see below), whose sum is σ = 50471700. Its totient is φ = 47106864.

The previous prime is 48789277. The next prime is 48789289. The reversal of 48789281 is 18298784.

48789281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20070400 + 28718881 = 4480^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 48789281 - 2² = 48789277 is a prime.

It is a super-2 number, since 2×48789281² = 4760787880993922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48789289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841166 + ... + 841223.

It is an arithmetic number, because the mean of its divisors is an integer number (12617925).

Almost surely, 2^48789281 is an apocalyptic number.

It is an amenable number.

48789281 is a deficient number, since it is larger than the sum of its proper divisors (1682419).

48789281 is a wasteful number, since it uses less digits than its factorization.

48789281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682418.

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

The square root of 48789281 is about 6984.9324263016. The cubic root of 48789281 is about 365.4052694988.

The spelling of 48789281 in words is "forty-eight million, seven hundred eighty-nine thousand, two hundred eighty-one".