47223613 has 4 divisors (see below), whose sum is σ = 47540700. Its totient is φ = 46906528.

The previous prime is 47223599. The next prime is 47223619. The reversal of 47223613 is 31632274.

47223613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2427364 + 44796249 = 1558^2 + 6693^2 .

It is a cyclic number.

It is not a de Polignac number, because 47223613 - 2¹⁷ = 47092541 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 (47223619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158320 + ... + 158617.

It is an arithmetic number, because the mean of its divisors is an integer number (11885175).

Almost surely, 2^47223613 is an apocalyptic number.

It is an amenable number.

47223613 is a deficient number, since it is larger than the sum of its proper divisors (317087).

47223613 is a wasteful number, since it uses less digits than its factorization.

47223613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317086.

The product of its digits is 6048, while the sum is 28.

The square root of 47223613 is about 6871.9439025650. The cubic root of 47223613 is about 361.4540292917.

Adding to 47223613 its reverse (31632274), we get a palindrome (78855887).

The spelling of 47223613 in words is "forty-seven million, two hundred twenty-three thousand, six hundred thirteen".