5671609 has 2 divisors, whose sum is σ = 5671610. Its totient is φ = 5671608.

The previous prime is 5671579. The next prime is 5671613. The reversal of 5671609 is 9061765.

5671609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4665600 + 1006009 = 2160^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 5671609 - 2⁹ = 5671097 is a prime.

It is not a weakly prime, because it can be changed into another prime (5671649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2835804 + 2835805.

It is an arithmetic number, because the mean of its divisors is an integer number (2835805).

Almost surely, 2^5671609 is an apocalyptic number.

It is an amenable number.

5671609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5671609 is an equidigital number, since it uses as much as digits as its factorization.

5671609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 5671609 is about 2381.5140142355. The cubic root of 5671609 is about 178.3345243076.

It can be divided in two parts, 56 and 71609, that multiplied together give a palindrome (4010104).

The spelling of 5671609 in words is "five million, six hundred seventy-one thousand, six hundred nine".