48472009 has 2 divisors, whose sum is σ = 48472010. Its totient is φ = 48472008.

The previous prime is 48472007. The next prime is 48472013. The reversal of 48472009 is 90027484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46854025 + 1617984 = 6845^2 + 1272^2 .

It is a cyclic number.

It is not a de Polignac number, because 48472009 - 2¹ = 48472007 is a prime.

Together with 48472007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (48472001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24236004 + 24236005.

It is an arithmetic number, because the mean of its divisors is an integer number (24236005).

Almost surely, 2^48472009 is an apocalyptic number.

It is an amenable number.

48472009 is a deficient number, since it is larger than the sum of its proper divisors (1).

48472009 is an equidigital number, since it uses as much as digits as its factorization.

48472009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 48472009 is about 6962.1842118691. The cubic root of 48472009 is about 364.6114812582.

The spelling of 48472009 in words is "forty-eight million, four hundred seventy-two thousand, nine".