47918885 has 16 divisors (see below), whose sum is σ = 67495296. Its totient is φ = 31969728.

The previous prime is 47918881. The next prime is 47918917. The reversal of 47918885 is 58881974.

It is not a de Polignac number, because 47918885 - 2² = 47918881 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 (47918881) 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, 17207 + ... + 19796.

It is an arithmetic number, because the mean of its divisors is an integer number (4218456).

Almost surely, 2^47918885 is an apocalyptic number.

It is an amenable number.

47918885 is a deficient number, since it is larger than the sum of its proper divisors (19576411).

47918885 is a wasteful number, since it uses less digits than its factorization.

47918885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37052.

The product of its digits is 645120, while the sum is 50.

The square root of 47918885 is about 6922.3467841477. The cubic root of 47918885 is about 363.2192868404.

The spelling of 47918885 in words is "forty-seven million, nine hundred eighteen thousand, eight hundred eighty-five".