47085013 has 4 divisors (see below), whose sum is σ = 47156908. Its totient is φ = 47013120.

The previous prime is 47085007. The next prime is 47085037. The reversal of 47085013 is 31058074.

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 35916049 + 11168964 = 5993^2 + 3342^2 .

It is a cyclic number.

It is not a de Polignac number, because 47085013 - 2⁵ = 47084981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47085113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34956 + ... + 36277.

It is an arithmetic number, because the mean of its divisors is an integer number (11789227).

Almost surely, 2^47085013 is an apocalyptic number.

It is an amenable number.

47085013 is a deficient number, since it is larger than the sum of its proper divisors (71895).

47085013 is an equidigital number, since it uses as much as digits as its factorization.

47085013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71894.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 47085013 is about 6861.8520094797. The cubic root of 47085013 is about 361.1000635744.

The spelling of 47085013 in words is "forty-seven million, eighty-five thousand, thirteen".