47828187 has 48 divisors (see below), whose sum is σ = 81169920. Its totient is φ = 26827200.

The previous prime is 47828177. The next prime is 47828203. The reversal of 47828187 is 78182874.

It is not a de Polignac number, because 47828187 - 2⁴ = 47828171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47828117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88137 + ... + 88677.

It is an arithmetic number, because the mean of its divisors is an integer number (1691040).

Almost surely, 2^47828187 is an apocalyptic number.

47828187 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

47828187 is a deficient number, since it is larger than the sum of its proper divisors (33341733).

47828187 is a wasteful number, since it uses less digits than its factorization.

47828187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 621 counting only the distinct ones).

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

The square root of 47828187 is about 6915.7925793072. The cubic root of 47828187 is about 362.9899821929.

The spelling of 47828187 in words is "forty-seven million, eight hundred twenty-eight thousand, one hundred eighty-seven".