47985918 has 16 divisors (see below), whose sum is σ = 97324416. Its totient is φ = 15769880.

The previous prime is 47985911. The next prime is 47985953. The reversal of 47985918 is 81958974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47985911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55896 + ... + 56747.

It is an arithmetic number, because the mean of its divisors is an integer number (6082776).

Almost surely, 2^47985918 is an apocalyptic number.

47985918 is an abundant number, since it is smaller than the sum of its proper divisors (49338498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47985918 is a wasteful number, since it uses less digits than its factorization.

47985918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112719.

The product of its digits is 725760, while the sum is 51.

The square root of 47985918 is about 6927.1868749154. The cubic root of 47985918 is about 363.3885752401.

The spelling of 47985918 in words is "forty-seven million, nine hundred eighty-five thousand, nine hundred eighteen".