2917009 has 4 divisors (see below), whose sum is σ = 2922804. Its totient is φ = 2911216.

The previous prime is 2917003. The next prime is 2917037. The reversal of 2917009 is 9007192.

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 1329409 + 1587600 = 1153^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2917009 - 2³ = 2917001 is a prime.

It is a Duffinian number.

2917009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2917001) 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, 2062 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (730701).

2^2917009 is an apocalyptic number.

It is an amenable number.

2917009 is a deficient number, since it is larger than the sum of its proper divisors (5795).

2917009 is an equidigital number, since it uses as much as digits as its factorization.

2917009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5794.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2917009 is about 1707.9253496567. The cubic root of 2917009 is about 142.8825710450.

The spelling of 2917009 in words is "two million, nine hundred seventeen thousand, nine".