47685845 has 8 divisors (see below), whose sum is σ = 57442176. Its totient is φ = 38002576.

The previous prime is 47685823. The next prime is 47685853. The reversal of 47685845 is 54858674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47685845 - 2¹⁰ = 47684821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47685845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16817 + ... + 19446.

It is an arithmetic number, because the mean of its divisors is an integer number (7180272).

Almost surely, 2^47685845 is an apocalyptic number.

It is an amenable number.

47685845 is a deficient number, since it is larger than the sum of its proper divisors (9756331).

47685845 is a wasteful number, since it uses less digits than its factorization.

47685845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36531.

The product of its digits is 1075200, while the sum is 47.

The square root of 47685845 is about 6905.4938273812. The cubic root of 47685845 is about 362.6295248594.

The spelling of 47685845 in words is "forty-seven million, six hundred eighty-five thousand, eight hundred forty-five".