47838287 has 16 divisors (see below), whose sum is σ = 55837440. Its totient is φ = 40139712.

The previous prime is 47838281. The next prime is 47838311. The reversal of 47838287 is 78283874.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 47838287 - 2⁸ = 47838031 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 (47838281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91208 + ... + 91730.

It is an arithmetic number, because the mean of its divisors is an integer number (3489840).

Almost surely, 2^47838287 is an apocalyptic number.

47838287 is a deficient number, since it is larger than the sum of its proper divisors (7999153).

47838287 is a wasteful number, since it uses less digits than its factorization.

47838287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its digits is 602112, while the sum is 47.

The square root of 47838287 is about 6916.5227535229. The cubic root of 47838287 is about 363.0155315674.

The spelling of 47838287 in words is "forty-seven million, eight hundred thirty-eight thousand, two hundred eighty-seven".