47324909 has 2 divisors, whose sum is σ = 47324910. Its totient is φ = 47324908.

The previous prime is 47324873. The next prime is 47324993. The reversal of 47324909 is 90942374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44262409 + 3062500 = 6653^2 + 1750^2 .

It is a cyclic number.

It is not a de Polignac number, because 47324909 - 2⁸ = 47324653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47324999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23662454 + 23662455.

It is an arithmetic number, because the mean of its divisors is an integer number (23662455).

Almost surely, 2^47324909 is an apocalyptic number.

It is an amenable number.

47324909 is a deficient number, since it is larger than the sum of its proper divisors (1).

47324909 is an equidigital number, since it uses as much as digits as its factorization.

47324909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 47324909 is about 6879.3102125140. The cubic root of 47324909 is about 361.7122877979.

The spelling of 47324909 in words is "forty-seven million, three hundred twenty-four thousand, nine hundred nine".