47842539 has 8 divisors (see below), whose sum is σ = 67542480. Its totient is φ = 30018816.

The previous prime is 47842523. The next prime is 47842567. The reversal of 47842539 is 93524874.

47842539 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 not a de Polignac number, because 47842539 - 2⁴ = 47842523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47842539.

It is not an unprimeable number, because it can be changed into a prime (47842339) 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, 468994 + ... + 469095.

It is an arithmetic number, because the mean of its divisors is an integer number (8442810).

Almost surely, 2^47842539 is an apocalyptic number.

47842539 is a deficient number, since it is larger than the sum of its proper divisors (19699941).

47842539 is a wasteful number, since it uses less digits than its factorization.

47842539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938109.

The product of its digits is 241920, while the sum is 42.

The square root of 47842539 is about 6916.8301265826. The cubic root of 47842539 is about 363.0262865254.

The spelling of 47842539 in words is "forty-seven million, eight hundred forty-two thousand, five hundred thirty-nine".