47028213 has 12 divisors (see below), whose sum is σ = 68116620. Its totient is φ = 31265856.

The previous prime is 47028203. The next prime is 47028259. The reversal of 47028213 is 31282074.

It can be written as a sum of positive squares in 2 ways, for example, as 31606884 + 15421329 = 5622^2 + 3927^2 .

It is not a de Polignac number, because 47028213 - 2⁵ = 47028181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47028203) 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 11 ways as a sum of consecutive naturals, for example, 3648 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (5676385).

Almost surely, 2^47028213 is an apocalyptic number.

It is an amenable number.

47028213 is a deficient number, since it is larger than the sum of its proper divisors (21088407).

47028213 is a wasteful number, since it uses less digits than its factorization.

47028213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388 (or 14385 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 47028213 is about 6857.7119362073. The cubic root of 47028213 is about 360.9548033645.

The spelling of 47028213 in words is "forty-seven million, twenty-eight thousand, two hundred thirteen".