47828871 has 24 divisors (see below), whose sum is σ = 77004720. Its totient is φ = 28429056.

The previous prime is 47828861. The next prime is 47828887. The reversal of 47828871 is 17882874.

It is not a de Polignac number, because 47828871 - 2⁵ = 47828839 is a prime.

It is a super-2 number, since 2×47828871² = 4575201802269282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47828861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5320 + ... + 11133.

It is an arithmetic number, because the mean of its divisors is an integer number (3208530).

Almost surely, 2^47828871 is an apocalyptic number.

47828871 is a deficient number, since it is larger than the sum of its proper divisors (29175849).

47828871 is a wasteful number, since it uses less digits than its factorization.

47828871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16495 (or 16492 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 47828871 is about 6915.8420311629. The cubic root of 47828871 is about 362.9917125809.

The spelling of 47828871 in words is "forty-seven million, eight hundred twenty-eight thousand, eight hundred seventy-one".