47087111 has 4 divisors (see below), whose sum is σ = 49565400. Its totient is φ = 44608824.

The previous prime is 47087101. The next prime is 47087123. The reversal of 47087111 is 11178074.

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 47087111 - 2²² = 42892807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47087101) 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, 1239116 + ... + 1239153.

It is an arithmetic number, because the mean of its divisors is an integer number (12391350).

Almost surely, 2^47087111 is an apocalyptic number.

47087111 is a deficient number, since it is larger than the sum of its proper divisors (2478289).

47087111 is a wasteful number, since it uses less digits than its factorization.

47087111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478288.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 47087111 is about 6862.0048819569. The cubic root of 47087111 is about 361.1054267578.

The spelling of 47087111 in words is "forty-seven million, eighty-seven thousand, one hundred eleven".