47985636 has 24 divisors (see below), whose sum is σ = 116835264. Its totient is φ = 15299680.

The previous prime is 47985631. The next prime is 47985649. The reversal of 47985636 is 63658974.

It is not an unprimeable number, because it can be changed into a prime (47985631) 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, 86655 + ... + 87206.

It is an arithmetic number, because the mean of its divisors is an integer number (4868136).

Almost surely, 2^47985636 is an apocalyptic number.

47985636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

47985636 is an abundant number, since it is smaller than the sum of its proper divisors (68849628).

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

47985636 is a wasteful number, since it uses less digits than its factorization.

47985636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173891 (or 173889 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 47985636 is about 6927.1665203025. The cubic root of 47985636 is about 363.3878633939.

The spelling of 47985636 in words is "forty-seven million, nine hundred eighty-five thousand, six hundred thirty-six".