47508985 has 8 divisors (see below), whose sum is σ = 57374856. Its totient is φ = 37764480.

The previous prime is 47508977. The next prime is 47508991. The reversal of 47508985 is 58980574.

It can be written as a sum of positive squares in 4 ways, for example, as 23104 + 47485881 = 152^2 + 6891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47508985 - 2³ = 47508977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29476 + ... + 31045.

It is an arithmetic number, because the mean of its divisors is an integer number (7171857).

Almost surely, 2^47508985 is an apocalyptic number.

It is an amenable number.

47508985 is a deficient number, since it is larger than the sum of its proper divisors (9865871).

47508985 is a wasteful number, since it uses less digits than its factorization.

47508985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60683.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 47508985 is about 6892.6761856336. The cubic root of 47508985 is about 362.1806557362.

It can be divided in two parts, 4750898 and 5, that added together give a triangular number (4750903 = T₃₀₈₂).

The spelling of 47508985 in words is "forty-seven million, five hundred eight thousand, nine hundred eighty-five".