47151787 has 8 divisors (see below), whose sum is σ = 49854800. Its totient is φ = 44470944.

The previous prime is 47151781. The next prime is 47151791. The reversal of 47151787 is 78715174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47151787 - 2¹⁹ = 46627499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47151781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068 + ... + 9769.

It is an arithmetic number, because the mean of its divisors is an integer number (6231850).

Almost surely, 2^47151787 is an apocalyptic number.

47151787 is a deficient number, since it is larger than the sum of its proper divisors (2703013).

47151787 is a wasteful number, since it uses less digits than its factorization.

47151787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11085.

The product of its digits is 54880, while the sum is 40.

The square root of 47151787 is about 6866.7158817007. The cubic root of 47151787 is about 361.2706819575.

The spelling of 47151787 in words is "forty-seven million, one hundred fifty-one thousand, seven hundred eighty-seven".