47939135 has 4 divisors (see below), whose sum is σ = 57526968. Its totient is φ = 38351304.

The previous prime is 47939123. The next prime is 47939137. The reversal of 47939135 is 53193974.

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

It is a cyclic number.

It is not a de Polignac number, because 47939135 - 2¹⁶ = 47873599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47939092 and 47939101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47939137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4793909 + ... + 4793918.

It is an arithmetic number, because the mean of its divisors is an integer number (14381742).

Almost surely, 2^47939135 is an apocalyptic number.

47939135 is a deficient number, since it is larger than the sum of its proper divisors (9587833).

47939135 is an equidigital number, since it uses as much as digits as its factorization.

47939135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587832.

The product of its digits is 102060, while the sum is 41.

The square root of 47939135 is about 6923.8092839130. The cubic root of 47939135 is about 363.2704438093.

The spelling of 47939135 in words is "forty-seven million, nine hundred thirty-nine thousand, one hundred thirty-five".