2987009 has 4 divisors (see below), whose sum is σ = 3144240. Its totient is φ = 2829780.

The previous prime is 2986999. The next prime is 2987021. The reversal of 2987009 is 9007892.

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 a de Polignac number, because none of the positive numbers 2^k-2987009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2987009.

It is not an unprimeable number, because it can be changed into a prime (2987099) 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, 78587 + ... + 78624.

It is an arithmetic number, because the mean of its divisors is an integer number (786060).

2^2987009 is an apocalyptic number.

It is an amenable number.

2987009 is a deficient number, since it is larger than the sum of its proper divisors (157231).

2987009 is a wasteful number, since it uses less digits than its factorization.

2987009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157230.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2987009 is about 1728.2965602002. The cubic root of 2987009 is about 144.0164750955.

The spelling of 2987009 in words is "two million, nine hundred eighty-seven thousand, nine".