705009 has 4 divisors (see below), whose sum is σ = 940016. Its totient is φ = 470004.

The previous prime is 704999. The next prime is 705011. The reversal of 705009 is 900507.

705009 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 not a de Polignac number, because 705009 - 2⁴ = 704993 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705079) 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, 117499 + ... + 117504.

It is an arithmetic number, because the mean of its divisors is an integer number (235004).

2⁷⁰⁵⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

705009 is a deficient number, since it is larger than the sum of its proper divisors (235007).

705009 is a wasteful number, since it uses less digits than its factorization.

705009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235006.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 705009 is about 839.6481405922. The cubic root of 705009 is about 89.0016832573.

The spelling of 705009 in words is "seven hundred five thousand, nine".