47275609 has 2 divisors, whose sum is σ = 47275610. Its totient is φ = 47275608.

The previous prime is 47275601. The next prime is 47275637. The reversal of 47275609 is 90657274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 21418384 = 5085^2 + 4628^2 .

It is a cyclic number.

It is not a de Polignac number, because 47275609 - 2³ = 47275601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47275601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23637804 + 23637805.

It is an arithmetic number, because the mean of its divisors is an integer number (23637805).

Almost surely, 2^47275609 is an apocalyptic number.

It is an amenable number.

47275609 is a deficient number, since it is larger than the sum of its proper divisors (1).

47275609 is an equidigital number, since it uses as much as digits as its factorization.

47275609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 47275609 is about 6875.7260707506. The cubic root of 47275609 is about 361.5866414102.

The spelling of 47275609 in words is "forty-seven million, two hundred seventy-five thousand, six hundred nine".