47853811 has 4 divisors (see below), whose sum is σ = 47870032. Its totient is φ = 47837592.

The previous prime is 47853809. The next prime is 47853821. The reversal of 47853811 is 11835874.

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

It is a cyclic number.

It is not a de Polignac number, because 47853811 - 2¹ = 47853809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47853821) 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, 2295 + ... + 10048.

It is an arithmetic number, because the mean of its divisors is an integer number (11967508).

Almost surely, 2^47853811 is an apocalyptic number.

47853811 is a deficient number, since it is larger than the sum of its proper divisors (16221).

47853811 is a wasteful number, since it uses less digits than its factorization.

47853811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16220.

The product of its digits is 26880, while the sum is 37.

The square root of 47853811 is about 6917.6449027107. The cubic root of 47853811 is about 363.0547947043.

It can be divided in two parts, 478 and 53811, that added together give a square (54289 = 233²).

The spelling of 47853811 in words is "forty-seven million, eight hundred fifty-three thousand, eight hundred eleven".