2086399 has 8 divisors (see below), whose sum is σ = 2488320. Its totient is φ = 1710456.

The previous prime is 2086397. The next prime is 2086421. The reversal of 2086399 is 9936802.

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 2086399 - 2¹ = 2086397 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 (2086397) 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, 6319 + ... + 6640.

It is an arithmetic number, because the mean of its divisors is an integer number (311040).

2^2086399 is an apocalyptic number.

2086399 is a deficient number, since it is larger than the sum of its proper divisors (401921).

2086399 is a wasteful number, since it uses less digits than its factorization.

2086399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2086399 is about 1444.4372606659. The cubic root of 2086399 is about 127.7808546763.

It can be divided in two parts, 2086 and 399, that added together give a triangular number (2485 = T₇₀).

The spelling of 2086399 in words is "two million, eighty-six thousand, three hundred ninety-nine".