47297609 has 2 divisors, whose sum is σ = 47297610. Its totient is φ = 47297608.

The previous prime is 47297603. The next prime is 47297611. The reversal of 47297609 is 90679274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43930384 + 3367225 = 6628^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 47297609 - 2⁸ = 47297353 is a prime.

It is a Sophie Germain prime.

Together with 47297611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47297609.

It is not a weakly prime, because it can be changed into another prime (47297603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23648804 + 23648805.

It is an arithmetic number, because the mean of its divisors is an integer number (23648805).

Almost surely, 2^47297609 is an apocalyptic number.

It is an amenable number.

47297609 is a deficient number, since it is larger than the sum of its proper divisors (1).

47297609 is an equidigital number, since it uses as much as digits as its factorization.

47297609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 47297609 is about 6877.3257157125. The cubic root of 47297609 is about 361.6427215796.

The spelling of 47297609 in words is "forty-seven million, two hundred ninety-seven thousand, six hundred nine".