5671309 has 6 divisors (see below), whose sum is σ = 6597294. Its totient is φ = 4861080.

The previous prime is 5671279. The next prime is 5671361. The reversal of 5671309 is 9031765.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 2706025 = 1722^2 + 1645^2 .

It is not a de Polignac number, because 5671309 - 2⁵ = 5671277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5671609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57822 + ... + 57919.

It is an arithmetic number, because the mean of its divisors is an integer number (1099549).

Almost surely, 2^5671309 is an apocalyptic number.

It is an amenable number.

5671309 is a deficient number, since it is larger than the sum of its proper divisors (925985).

5671309 is a wasteful number, since it uses less digits than its factorization.

5671309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115755 (or 115748 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 5671309 is about 2381.4510282599. The cubic root of 5671309 is about 178.3313799147.

The spelling of 5671309 in words is "five million, six hundred seventy-one thousand, three hundred nine".