47785039 has 4 divisors (see below), whose sum is σ = 47831056. Its totient is φ = 47739024.

The previous prime is 47785037. The next prime is 47785051. The reversal of 47785039 is 93058774.

It is a happy number.

47785039 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 is a cyclic number.

It is not a de Polignac number, because 47785039 - 2¹ = 47785037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47784986 and 47785004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47785033) 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, 21414 + ... + 23539.

It is an arithmetic number, because the mean of its divisors is an integer number (11957764).

Almost surely, 2^47785039 is an apocalyptic number.

47785039 is a deficient number, since it is larger than the sum of its proper divisors (46017).

47785039 is a wasteful number, since it uses less digits than its factorization.

47785039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46016.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 47785039 is about 6912.6723486652. The cubic root of 47785039 is about 362.8807927170.

The spelling of 47785039 in words is "forty-seven million, seven hundred eighty-five thousand, thirty-nine".