47245823 has 2 divisors, whose sum is σ = 47245824. Its totient is φ = 47245822.

The previous prime is 47245811. The next prime is 47245867. The reversal of 47245823 is 32854274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47245823 - 2¹⁸ = 46983679 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47245123) 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, 23622911 + 23622912.

It is an arithmetic number, because the mean of its divisors is an integer number (23622912).

Almost surely, 2^47245823 is an apocalyptic number.

47245823 is a deficient number, since it is larger than the sum of its proper divisors (1).

47245823 is an equidigital number, since it uses as much as digits as its factorization.

47245823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 35.

The square root of 47245823 is about 6873.5597036761. The cubic root of 47245823 is about 361.5106862285.

The spelling of 47245823 in words is "forty-seven million, two hundred forty-five thousand, eight hundred twenty-three".