47420833 has 2 divisors, whose sum is σ = 47420834. Its totient is φ = 47420832.

The previous prime is 47420831. The next prime is 47420839. The reversal of 47420833 is 33802474.

It is a happy number.

47420833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28654609 + 18766224 = 5353^2 + 4332^2 .

It is a cyclic number.

It is not a de Polignac number, because 47420833 - 2¹ = 47420831 is a prime.

Together with 47420831, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 47420795 and 47420804.

It is not a weakly prime, because it can be changed into another prime (47420831) 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 as a sum of consecutive naturals, namely, 23710416 + 23710417.

It is an arithmetic number, because the mean of its divisors is an integer number (23710417).

Almost surely, 2^47420833 is an apocalyptic number.

It is an amenable number.

47420833 is a deficient number, since it is larger than the sum of its proper divisors (1).

47420833 is an equidigital number, since it uses as much as digits as its factorization.

47420833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 47420833 is about 6886.2786031354. The cubic root of 47420833 is about 361.9565106532.

The spelling of 47420833 in words is "forty-seven million, four hundred twenty thousand, eight hundred thirty-three".