47838111 has 4 divisors (see below), whose sum is σ = 63784152. Its totient is φ = 31892072.

The previous prime is 47838073. The next prime is 47838113. The reversal of 47838111 is 11183874.

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 47838111 - 2⁶ = 47838047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47838113) 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, 7973016 + ... + 7973021.

It is an arithmetic number, because the mean of its divisors is an integer number (15946038).

Almost surely, 2^47838111 is an apocalyptic number.

47838111 is a deficient number, since it is larger than the sum of its proper divisors (15946041).

47838111 is a wasteful number, since it uses less digits than its factorization.

47838111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15946040.

The product of its digits is 5376, while the sum is 33.

The square root of 47838111 is about 6916.5100303549. The cubic root of 47838111 is about 363.0150863813.

The spelling of 47838111 in words is "forty-seven million, eight hundred thirty-eight thousand, one hundred eleven".