606729 has 4 divisors (see below), whose sum is σ = 808976. Its totient is φ = 404484.

The previous prime is 606721. The next prime is 606731. The reversal of 606729 is 927606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 606729 - 2³ = 606721 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 606696 and 606705.

It is not an unprimeable number, because it can be changed into a prime (606721) 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, 101119 + ... + 101124.

It is an arithmetic number, because the mean of its divisors is an integer number (202244).

2⁶⁰⁶⁷²⁹ is an apocalyptic number.

It is an amenable number.

606729 is a deficient number, since it is larger than the sum of its proper divisors (202247).

606729 is a wasteful number, since it uses less digits than its factorization.

606729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202246.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 606729 is about 778.9281096481. The cubic root of 606729 is about 84.6573983558.

The spelling of 606729 in words is "six hundred six thousand, seven hundred twenty-nine".