2987117 has 4 divisors (see below), whose sum is σ = 3413856. Its totient is φ = 2560380.

The previous prime is 2987113. The next prime is 2987141. The reversal of 2987117 is 7117892.

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 not a de Polignac number, because 2987117 - 2² = 2987113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987113) 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, 213359 + ... + 213372.

It is an arithmetic number, because the mean of its divisors is an integer number (853464).

2^2987117 is an apocalyptic number.

It is an amenable number.

2987117 is a deficient number, since it is larger than the sum of its proper divisors (426739).

2987117 is an equidigital number, since it uses as much as digits as its factorization.

2987117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426738.

The product of its digits is 7056, while the sum is 35.

The square root of 2987117 is about 1728.3278045556. The cubic root of 2987117 is about 144.0182107885.

The spelling of 2987117 in words is "two million, nine hundred eighty-seven thousand, one hundred seventeen".