47318613 has 16 divisors (see below), whose sum is σ = 67239936. Its totient is φ = 29530160.

The previous prime is 47318603. The next prime is 47318627. The reversal of 47318613 is 31681374.

It is not a de Polignac number, because 47318613 - 2¹² = 47314517 is a prime.

It is a super-2 number, since 2×47318613² = 4478102272487538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47318603) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4053 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (4202496).

Almost surely, 2^47318613 is an apocalyptic number.

It is an amenable number.

47318613 is a deficient number, since it is larger than the sum of its proper divisors (19921323).

47318613 is a wasteful number, since it uses less digits than its factorization.

47318613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14664.

The product of its digits is 12096, while the sum is 33.

The square root of 47318613 is about 6878.8525932745. The cubic root of 47318613 is about 361.6962466221.

Adding to 47318613 its reverse (31681374), we get a palindrome (78999987).

The spelling of 47318613 in words is "forty-seven million, three hundred eighteen thousand, six hundred thirteen".