2087917 has 8 divisors (see below), whose sum is σ = 2346624. Its totient is φ = 1843248.

The previous prime is 2087909. The next prime is 2087927. The reversal of 2087917 is 7197802.

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 2087917 - 2³ = 2087909 is a prime.

It is a Duffinian number.

2087917 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3193 + ... + 3790.

It is an arithmetic number, because the mean of its divisors is an integer number (293328).

2^2087917 is an apocalyptic number.

It is an amenable number.

2087917 is a deficient number, since it is larger than the sum of its proper divisors (258707).

2087917 is a wasteful number, since it uses less digits than its factorization.

2087917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2087917 is about 1444.9626292745. The cubic root of 2087917 is about 127.8118369755.

The spelling of 2087917 in words is "two million, eighty-seven thousand, nine hundred seventeen".