2086719 has 4 divisors (see below), whose sum is σ = 2782296. Its totient is φ = 1391144.

The previous prime is 2086697. The next prime is 2086723. The reversal of 2086719 is 9176802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2086719 - 2¹¹ = 2084671 is a prime.

It is a super-2 number, since 2×2086719² = 8708792369922, which contains 22 as substring.

It is a D-number.

2086719 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2086719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086739) 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 3 ways as a sum of consecutive naturals, for example, 347784 + ... + 347789.

It is an arithmetic number, because the mean of its divisors is an integer number (695574).

2^2086719 is an apocalyptic number.

2086719 is a deficient number, since it is larger than the sum of its proper divisors (695577).

2086719 is an equidigital number, since it uses as much as digits as its factorization.

2086719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695576.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2086719 is about 1444.5480262006. The cubic root of 2086719 is about 127.7873871090.

The spelling of 2086719 in words is "two million, eighty-six thousand, seven hundred nineteen".