47431285 has 8 divisors (see below), whose sum is σ = 62091936. Its totient is φ = 34495440.

The previous prime is 47431283. The next prime is 47431291. The reversal of 47431285 is 58213474.

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

It is not a de Polignac number, because 47431285 - 2¹ = 47431283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47431285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47431283) 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, 431139 + ... + 431248.

It is an arithmetic number, because the mean of its divisors is an integer number (7761492).

Almost surely, 2^47431285 is an apocalyptic number.

It is an amenable number.

47431285 is a deficient number, since it is larger than the sum of its proper divisors (14660651).

47431285 is a wasteful number, since it uses less digits than its factorization.

47431285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862403.

The product of its digits is 26880, while the sum is 34.

The square root of 47431285 is about 6887.0374617828. The cubic root of 47431285 is about 361.9831015788.

The spelling of 47431285 in words is "forty-seven million, four hundred thirty-one thousand, two hundred eighty-five".