47539481 has 8 divisors (see below), whose sum is σ = 52206528. Its totient is φ = 42930000.

The previous prime is 47539477. The next prime is 47539483. The reversal of 47539481 is 18493574.

47539481 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 47539481 - 2² = 47539477 is a prime.

It is a super-2 number, since 2×47539481² = 4520004507498722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47539483) 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, 12650 + ... + 15971.

It is an arithmetic number, because the mean of its divisors is an integer number (6525816).

Almost surely, 2^47539481 is an apocalyptic number.

It is an amenable number.

47539481 is a deficient number, since it is larger than the sum of its proper divisors (4667047).

47539481 is a wasteful number, since it uses less digits than its factorization.

47539481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28783.

The product of its digits is 120960, while the sum is 41.

The square root of 47539481 is about 6894.8880338987. Note that the first 3 decimals coincide. The cubic root of 47539481 is about 362.2581337041.

The spelling of 47539481 in words is "forty-seven million, five hundred thirty-nine thousand, four hundred eighty-one".