2086401 has 4 divisors (see below), whose sum is σ = 2781872. Its totient is φ = 1390932.

The previous prime is 2086397. The next prime is 2086421. The reversal of 2086401 is 1046802.

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 2086401 - 2² = 2086397 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347731 + ... + 347736.

It is an arithmetic number, because the mean of its divisors is an integer number (695468).

2^2086401 is an apocalyptic number.

It is an amenable number.

2086401 is a deficient number, since it is larger than the sum of its proper divisors (695471).

2086401 is an equidigital number, since it uses as much as digits as its factorization.

2086401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695470.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2086401 is about 1444.4379529769. The cubic root of 2086401 is about 127.7808955061.

The spelling of 2086401 in words is "two million, eighty-six thousand, four hundred one".