47006785 has 32 divisors (see below), whose sum is σ = 68774400. Its totient is φ = 30108672.

The previous prime is 47006777. The next prime is 47006789. The reversal of 47006785 is 58760074.

It is a happy number.

It is a 2-Lehmer number, since φ(47006785) divides (47006785-1)².

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 47006785 - 2³ = 47006777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47006789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118207 + ... + 118603.

It is an arithmetic number, because the mean of its divisors is an integer number (2149200).

It is a Poulet number, since it divides 2^47006784-1.

Almost surely, 2^47006785 is an apocalyptic number.

It is an amenable number.

47006785 is a deficient number, since it is larger than the sum of its proper divisors (21767615).

47006785 is a wasteful number, since it uses less digits than its factorization.

47006785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 47006785 is about 6856.1494295268. The cubic root of 47006785 is about 360.8999730541.

The spelling of 47006785 in words is "forty-seven million, six thousand, seven hundred eighty-five".