47231885 has 8 divisors (see below), whose sum is σ = 56881656. Its totient is φ = 37649920.

The previous prime is 47231867. The next prime is 47231887. The reversal of 47231885 is 58813274.

47231885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1885129 + 45346756 = 1373^2 + 6734^2 .

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

It is not a de Polignac number, because 47231885 - 2¹⁴ = 47215501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47231887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15404 + ... + 18213.

It is an arithmetic number, because the mean of its divisors is an integer number (7110207).

Almost surely, 2^47231885 is an apocalyptic number.

It is an amenable number.

47231885 is a deficient number, since it is larger than the sum of its proper divisors (9649771).

47231885 is a wasteful number, since it uses less digits than its factorization.

47231885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33903.

The product of its digits is 53760, while the sum is 38.

The square root of 47231885 is about 6872.5457437546. The cubic root of 47231885 is about 361.4751329513.

The spelling of 47231885 in words is "forty-seven million, two hundred thirty-one thousand, eight hundred eighty-five".