47028229 has 4 divisors (see below), whose sum is σ = 47198284. Its totient is φ = 46858176.

The previous prime is 47028203. The next prime is 47028259. The reversal of 47028229 is 92282074.

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 24275329 + 22752900 = 4927^2 + 4770^2 .

It is a cyclic number.

It is not a de Polignac number, because 47028229 - 2⁷ = 47028101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47028194 and 47028203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47028259) 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 3 ways as a sum of consecutive naturals, for example, 84612 + ... + 85165.

It is an arithmetic number, because the mean of its divisors is an integer number (11799571).

Almost surely, 2^47028229 is an apocalyptic number.

It is an amenable number.

47028229 is a deficient number, since it is larger than the sum of its proper divisors (170055).

47028229 is a wasteful number, since it uses less digits than its factorization.

47028229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170054.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 47028229 is about 6857.7131027770. The cubic root of 47028229 is about 360.9548442994.

The spelling of 47028229 in words is "forty-seven million, twenty-eight thousand, two hundred twenty-nine".