5617729 has 8 divisors (see below), whose sum is σ = 6088040. Its totient is φ = 5183568.

The previous prime is 5617709. The next prime is 5617739. The reversal of 5617729 is 9277165.

It can be written as a sum of positive squares in 4 ways, for example, as 1904400 + 3713329 = 1380^2 + 1927^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5617729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5617709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (761005).

Almost surely, 2^5617729 is an apocalyptic number.

It is an amenable number.

5617729 is a deficient number, since it is larger than the sum of its proper divisors (470311).

5617729 is an equidigital number, since it uses as much as digits as its factorization.

5617729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596 (or 2570 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 5617729 is about 2370.1748880621. The cubic root of 5617729 is about 177.7680035280.

The spelling of 5617729 in words is "five million, six hundred seventeen thousand, seven hundred twenty-nine".