47005785 has 16 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 25069680.

The previous prime is 47005747. The next prime is 47005789. The reversal of 47005785 is 58750074.

It is not a de Polignac number, because 47005785 - 2⁸ = 47005529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47005789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173961 + ... + 174230.

It is an arithmetic number, because the mean of its divisors is an integer number (5222880).

Almost surely, 2^47005785 is an apocalyptic number.

47005785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47005785 is a deficient number, since it is larger than the sum of its proper divisors (36560295).

47005785 is a wasteful number, since it uses less digits than its factorization.

47005785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348205 (or 348199 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 47005785 is about 6856.0765019069. The cubic root of 47005785 is about 360.8974138312.

The spelling of 47005785 in words is "forty-seven million, five thousand, seven hundred eighty-five".