2606729 has 4 divisors (see below), whose sum is σ = 2760084. Its totient is φ = 2453376.

The previous prime is 2606717. The next prime is 2606731. The reversal of 2606729 is 9276062.

2606729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1345600 + 1261129 = 1160^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2606729 - 2⁸ = 2606473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2606695 and 2606704.

It is not an unprimeable number, because it can be changed into a prime (2606129) 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 3 ways as a sum of consecutive naturals, for example, 76652 + ... + 76685.

It is an arithmetic number, because the mean of its divisors is an integer number (690021).

2^2606729 is an apocalyptic number.

It is an amenable number.

2606729 is a deficient number, since it is larger than the sum of its proper divisors (153355).

2606729 is a wasteful number, since it uses less digits than its factorization.

2606729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153354.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2606729 is about 1614.5367756728. The cubic root of 2606729 is about 137.6254106499.

The spelling of 2606729 in words is "two million, six hundred six thousand, seven hundred twenty-nine".