3616729 has 4 divisors (see below), whose sum is σ = 3650020. Its totient is φ = 3583440.

The previous prime is 3616721. The next prime is 3616741. The reversal of 3616729 is 9276163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2059225 + 1557504 = 1435^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 3616729 - 2³ = 3616721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3616694 and 3616703.

It is not an unprimeable number, because it can be changed into a prime (3616721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16482 + ... + 16699.

It is an arithmetic number, because the mean of its divisors is an integer number (912505).

Almost surely, 2^3616729 is an apocalyptic number.

It is an amenable number.

3616729 is a deficient number, since it is larger than the sum of its proper divisors (33291).

3616729 is a wasteful number, since it uses less digits than its factorization.

3616729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33290.

The product of its digits is 13608, while the sum is 34.

The square root of 3616729 is about 1901.7699650589. The cubic root of 3616729 is about 153.4989195212.

The spelling of 3616729 in words is "three million, six hundred sixteen thousand, seven hundred twenty-nine".