47223193 has 2 divisors, whose sum is σ = 47223194. Its totient is φ = 47223192.

The previous prime is 47223191. The next prime is 47223221. The reversal of 47223193 is 39132274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40857664 + 6365529 = 6392^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 47223193 - 2¹ = 47223191 is a prime.

Together with 47223191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47223191) 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 as a sum of consecutive naturals, namely, 23611596 + 23611597.

It is an arithmetic number, because the mean of its divisors is an integer number (23611597).

Almost surely, 2^47223193 is an apocalyptic number.

It is an amenable number.

47223193 is a deficient number, since it is larger than the sum of its proper divisors (1).

47223193 is an equidigital number, since it uses as much as digits as its factorization.

47223193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 47223193 is about 6871.9133434583. The cubic root of 47223193 is about 361.4529577152.

The spelling of 47223193 in words is "forty-seven million, two hundred twenty-three thousand, one hundred ninety-three".