47898085 has 4 divisors (see below), whose sum is σ = 57477708. Its totient is φ = 38318464.

The previous prime is 47898041. The next prime is 47898089. The reversal of 47898085 is 58089874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13535041 + 34363044 = 3679^2 + 5862^2 .

It is a cyclic number.

It is not a de Polignac number, because 47898085 - 2⁷ = 47897957 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47898089) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4789804 + ... + 4789813.

It is an arithmetic number, because the mean of its divisors is an integer number (14369427).

Almost surely, 2^47898085 is an apocalyptic number.

It is an amenable number.

47898085 is a deficient number, since it is larger than the sum of its proper divisors (9579623).

47898085 is an equidigital number, since it uses as much as digits as its factorization.

47898085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579622.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 47898085 is about 6920.8442404088. The cubic root of 47898085 is about 363.1667254160.

The spelling of 47898085 in words is "forty-seven million, eight hundred ninety-eight thousand, eighty-five".