47917827 has 12 divisors (see below), whose sum is σ = 69507360. Its totient is φ = 31810128.

The previous prime is 47917801. The next prime is 47917841. The reversal of 47917827 is 72871974.

It is a happy number.

47917827 is a `hidden beast` number, since 479 + 178 + 2 + 7 = 666.

47917827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47917827 - 2¹⁸ = 47655683 is a prime.

It is a super-2 number, since 2×47917827² = 4592236288803858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47917327) 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 11 ways as a sum of consecutive naturals, for example, 8988 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (5792280).

Almost surely, 2^47917827 is an apocalyptic number.

47917827 is a deficient number, since it is larger than the sum of its proper divisors (21589533).

47917827 is a wasteful number, since it uses less digits than its factorization.

47917827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522 (or 22519 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 47917827 is about 6922.2703645553. The cubic root of 47917827 is about 363.2166136505.

The spelling of 47917827 in words is "forty-seven million, nine hundred seventeen thousand, eight hundred twenty-seven".