2086819 has 8 divisors (see below), whose sum is σ = 2396768. Its totient is φ = 1779840.

The previous prime is 2086817. The next prime is 2086823. The reversal of 2086819 is 9186802.

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 2086819 - 2¹ = 2086817 is a prime.

It is a super-2 number, since 2×2086819² = 8709627077522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069 + ... + 2305.

It is an arithmetic number, because the mean of its divisors is an integer number (299596).

2^2086819 is an apocalyptic number.

2086819 is a deficient number, since it is larger than the sum of its proper divisors (309949).

2086819 is a wasteful number, since it uses less digits than its factorization.

2086819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2086819 is about 1444.5826386884. The cubic root of 2086819 is about 127.7894283573.

The spelling of 2086819 in words is "two million, eighty-six thousand, eight hundred nineteen".