47428573 has 2 divisors, whose sum is σ = 47428574. Its totient is φ = 47428572.

The previous prime is 47428571. The next prime is 47428609. The reversal of 47428573 is 37582474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24176889 + 23251684 = 4917^2 + 4822^2 .

It is a cyclic number.

It is not a de Polignac number, because 47428573 - 2¹ = 47428571 is a prime.

Together with 47428571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47428571) 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 as a sum of consecutive naturals, namely, 23714286 + 23714287.

It is an arithmetic number, because the mean of its divisors is an integer number (23714287).

Almost surely, 2^47428573 is an apocalyptic number.

It is an amenable number.

47428573 is a deficient number, since it is larger than the sum of its proper divisors (1).

47428573 is an equidigital number, since it uses as much as digits as its factorization.

47428573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 40.

The square root of 47428573 is about 6886.8405673429. The cubic root of 47428573 is about 361.9762023569.

The spelling of 47428573 in words is "forty-seven million, four hundred twenty-eight thousand, five hundred seventy-three".