47383187 has 4 divisors (see below), whose sum is σ = 49017120. Its totient is φ = 45749256.

The previous prime is 47383183. The next prime is 47383201. The reversal of 47383187 is 78138374.

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 47383187 - 2² = 47383183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47383181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816923 + ... + 816980.

It is an arithmetic number, because the mean of its divisors is an integer number (12254280).

Almost surely, 2^47383187 is an apocalyptic number.

47383187 is a deficient number, since it is larger than the sum of its proper divisors (1633933).

47383187 is a wasteful number, since it uses less digits than its factorization.

47383187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633932.

The product of its digits is 112896, while the sum is 41.

The square root of 47383187 is about 6883.5446537376. The cubic root of 47383187 is about 361.8607030981.

The spelling of 47383187 in words is "forty-seven million, three hundred eighty-three thousand, one hundred eighty-seven".