47579985 has 24 divisors (see below), whose sum is σ = 86059584. Its totient is φ = 24272160.

The previous prime is 47579953. The next prime is 47579993. The reversal of 47579985 is 58997574.

47579985 is a `hidden beast` number, since 475 + 7 + 99 + 85 = 666.

It is not a de Polignac number, because 47579985 - 2⁵ = 47579953 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21951 + ... + 24020.

It is an arithmetic number, because the mean of its divisors is an integer number (3585816).

Almost surely, 2^47579985 is an apocalyptic number.

47579985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47579985 is a deficient number, since it is larger than the sum of its proper divisors (38479599).

47579985 is a wasteful number, since it uses less digits than its factorization.

47579985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46005 (or 46002 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 47579985 is about 6897.8246570930. The cubic root of 47579985 is about 362.3609867290.

The spelling of 47579985 in words is "forty-seven million, five hundred seventy-nine thousand, nine hundred eighty-five".