47428193 has 4 divisors (see below), whose sum is σ = 47519748. Its totient is φ = 47336640.

The previous prime is 47428187. The next prime is 47428201. The reversal of 47428193 is 39182474.

47428193 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 25684624 + 21743569 = 5068^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 47428193 - 2⁴ = 47428177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47418193) 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, 44996 + ... + 46037.

It is an arithmetic number, because the mean of its divisors is an integer number (11879937).

Almost surely, 2^47428193 is an apocalyptic number.

It is an amenable number.

47428193 is a deficient number, since it is larger than the sum of its proper divisors (91555).

47428193 is an equidigital number, since it uses as much as digits as its factorization.

47428193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91554.

The product of its digits is 48384, while the sum is 38.

The square root of 47428193 is about 6886.8129784393. The cubic root of 47428193 is about 361.9752356308.

The spelling of 47428193 in words is "forty-seven million, four hundred twenty-eight thousand, one hundred ninety-three".