2087517 has 4 divisors (see below), whose sum is σ = 2783360. Its totient is φ = 1391676.

The previous prime is 2087497. The next prime is 2087531. The reversal of 2087517 is 7157802.

It is a happy number.

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 not a de Polignac number, because 2087517 - 2⁶ = 2087453 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087557) 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, 347917 + ... + 347922.

It is an arithmetic number, because the mean of its divisors is an integer number (695840).

2^2087517 is an apocalyptic number.

It is an amenable number.

2087517 is a deficient number, since it is larger than the sum of its proper divisors (695843).

2087517 is an equidigital number, since it uses as much as digits as its factorization.

2087517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695842.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 2087517 is about 1444.8242107606. The cubic root of 2087517 is about 127.8036744543.

The spelling of 2087517 in words is "two million, eighty-seven thousand, five hundred seventeen".