47851853 has 4 divisors (see below), whose sum is σ = 54687840. Its totient is φ = 41015868.

The previous prime is 47851849. The next prime is 47851871. The reversal of 47851853 is 35815874.

47851853 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47851853 - 2² = 47851849 is a prime.

It is a Duffinian number.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 47851853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47851813) 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, 3417983 + ... + 3417996.

It is an arithmetic number, because the mean of its divisors is an integer number (13671960).

Almost surely, 2^47851853 is an apocalyptic number.

It is an amenable number.

47851853 is a deficient number, since it is larger than the sum of its proper divisors (6835987).

47851853 is an equidigital number, since it uses as much as digits as its factorization.

47851853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835986.

The product of its digits is 134400, while the sum is 41.

The square root of 47851853 is about 6917.5033791101. The cubic root of 47851853 is about 363.0498430193.

The spelling of 47851853 in words is "forty-seven million, eight hundred fifty-one thousand, eight hundred fifty-three".