2687009 has 8 divisors (see below), whose sum is σ = 2916480. Its totient is φ = 2460816.

The previous prime is 2686993. The next prime is 2687023. The reversal of 2687009 is 9007862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2687009 - 2⁴ = 2686993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064 + ... + 2550.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

2^2687009 is an apocalyptic number.

It is an amenable number.

2687009 is a deficient number, since it is larger than the sum of its proper divisors (229471).

2687009 is a wasteful number, since it uses less digits than its factorization.

2687009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2687009 is about 1639.2098706389. The cubic root of 2687009 is about 139.0239766793.

The spelling of 2687009 in words is "two million, six hundred eighty-seven thousand, nine".