47452609 has 2 divisors, whose sum is σ = 47452610. Its totient is φ = 47452608.

The previous prime is 47452577. The next prime is 47452619. The reversal of 47452609 is 90625474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45603009 + 1849600 = 6753^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 47452609 - 2⁵ = 47452577 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (47452619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23726304 + 23726305.

It is an arithmetic number, because the mean of its divisors is an integer number (23726305).

Almost surely, 2^47452609 is an apocalyptic number.

It is an amenable number.

47452609 is a deficient number, since it is larger than the sum of its proper divisors (1).

47452609 is an equidigital number, since it uses as much as digits as its factorization.

47452609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 47452609 is about 6888.5854135664. The cubic root of 47452609 is about 362.0373398395.

The spelling of 47452609 in words is "forty-seven million, four hundred fifty-two thousand, six hundred nine".