2717987 has 8 divisors (see below), whose sum is σ = 2872320. Its totient is φ = 2567880.

The previous prime is 2717929. The next prime is 2717993. The reversal of 2717987 is 7897172.

2717987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2717987 - 2⁸ = 2717731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2717087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (359040).

2^2717987 is an apocalyptic number.

2717987 is a deficient number, since it is larger than the sum of its proper divisors (154333).

2717987 is a wasteful number, since it uses less digits than its factorization.

2717987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its digits is 49392, while the sum is 41.

The square root of 2717987 is about 1648.6318570257. The cubic root of 2717987 is about 139.5561966602.

Subtracting from 2717987 its sum of digits (41), we obtain a triangular number (2717946 = T₂₃₃₁).

The spelling of 2717987 in words is "two million, seven hundred seventeen thousand, nine hundred eighty-seven".