47385847 has 4 divisors (see below), whose sum is σ = 47449696. Its totient is φ = 47322000.

The previous prime is 47385841. The next prime is 47385853. The reversal of 47385847 is 74858374.

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

It is an interprime number because it is at equal distance from previous prime (47385841) and next prime (47385853).

It is a cyclic number.

It is not a de Polignac number, because 47385847 - 2⁷ = 47385719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47385797 and 47385806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47385841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30798 + ... + 32299.

It is an arithmetic number, because the mean of its divisors is an integer number (11862424).

Almost surely, 2^47385847 is an apocalyptic number.

47385847 is a deficient number, since it is larger than the sum of its proper divisors (63849).

47385847 is an equidigital number, since it uses as much as digits as its factorization.

47385847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63848.

The product of its digits is 752640, while the sum is 46.

The square root of 47385847 is about 6883.7378654333. The cubic root of 47385847 is about 361.8674743569.

It can be divided in two parts, 4738 and 5847, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 47385847 in words is "forty-seven million, three hundred eighty-five thousand, eight hundred forty-seven".