47183887 has 4 divisors (see below), whose sum is σ = 47201256. Its totient is φ = 47166520.

The previous prime is 47183881. The next prime is 47183921. The reversal of 47183887 is 78838174.

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 47183887 - 2¹⁵ = 47151119 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 (47183881) 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, 3628 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (11800314).

Almost surely, 2^47183887 is an apocalyptic number.

47183887 is a deficient number, since it is larger than the sum of its proper divisors (17369).

47183887 is a wasteful number, since it uses less digits than its factorization.

47183887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17368.

The product of its digits is 301056, while the sum is 46.

The square root of 47183887 is about 6869.0528459170. The cubic root of 47183887 is about 361.3526453287.

The spelling of 47183887 in words is "forty-seven million, one hundred eighty-three thousand, eight hundred eighty-seven".