609069 has 4 divisors (see below), whose sum is σ = 812096. Its totient is φ = 406044.

The previous prime is 609067. The next prime is 609071. The reversal of 609069 is 960906.

609069 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (609067) and next prime (609071).

It is not a de Polignac number, because 609069 - 2¹ = 609067 is a prime.

It is a super-2 number, since 2×609069² = 741930093522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609067) 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, 101509 + ... + 101514.

It is an arithmetic number, because the mean of its divisors is an integer number (203024).

2⁶⁰⁹⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

609069 is a deficient number, since it is larger than the sum of its proper divisors (203027).

609069 is a wasteful number, since it uses less digits than its factorization.

609069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203026.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 609069 is about 780.4287283282. The cubic root of 609069 is about 84.7660927838.

The spelling of 609069 in words is "six hundred nine thousand, sixty-nine".