47981489 has 8 divisors (see below), whose sum is σ = 49671168. Its totient is φ = 46312560.

The previous prime is 47981477. The next prime is 47981539. The reversal of 47981489 is 98418974.

47981489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47981489 - 2⁸ = 47981233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47981419) 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 7 ways as a sum of consecutive naturals, for example, 407 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (6208896).

Almost surely, 2^47981489 is an apocalyptic number.

It is an amenable number.

47981489 is a deficient number, since it is larger than the sum of its proper divisors (1689679).

47981489 is a wasteful number, since it uses less digits than its factorization.

47981489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375.

The product of its digits is 580608, while the sum is 50.

The square root of 47981489 is about 6926.8671850989. The cubic root of 47981489 is about 363.3773948940.

The spelling of 47981489 in words is "forty-seven million, nine hundred eighty-one thousand, four hundred eighty-nine".