5647129 has 2 divisors, whose sum is σ = 5647130. Its totient is φ = 5647128.

The previous prime is 5647093. The next prime is 5647163. The reversal of 5647129 is 9217465.

It is an a-pointer prime, because the next prime (5647163) can be obtained adding 5647129 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5184729 + 462400 = 2277^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 5647129 - 2⁷ = 5647001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5647094 and 5647103.

It is not a weakly prime, because it can be changed into another prime (5647189) 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 as a sum of consecutive naturals, namely, 2823564 + 2823565.

It is an arithmetic number, because the mean of its divisors is an integer number (2823565).

Almost surely, 2^5647129 is an apocalyptic number.

It is an amenable number.

5647129 is a deficient number, since it is larger than the sum of its proper divisors (1).

5647129 is an equidigital number, since it uses as much as digits as its factorization.

5647129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 5647129 is about 2376.3688686734. The cubic root of 5647129 is about 178.0775763358.

It can be divided in two parts, 5647 and 129, that added together give a square (5776 = 76²).

The spelling of 5647129 in words is "five million, six hundred forty-seven thousand, one hundred twenty-nine".