606724609 has 4 divisors (see below), whose sum is σ = 607613616. Its totient is φ = 605835604.

The previous prime is 606724603. The next prime is 606724627. The reversal of 606724609 is 906427606.

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 a cyclic number.

It is not a de Polignac number, because 606724609 - 2¹⁹ = 606200321 is a prime.

It is a super-2 number, since 2×606724609² = 736229502332405762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606724603) 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, 443479 + ... + 444844.

It is an arithmetic number, because the mean of its divisors is an integer number (151903404).

Almost surely, 2^606724609 is an apocalyptic number.

It is an amenable number.

606724609 is a deficient number, since it is larger than the sum of its proper divisors (889007).

606724609 is an equidigital number, since it uses as much as digits as its factorization.

606724609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889006.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 606724609 is about 24631.7804675180. The cubic root of 606724609 is about 846.5719412869.

The spelling of 606724609 in words is "six hundred six million, seven hundred twenty-four thousand, six hundred nine".