1806395 has 4 divisors (see below), whose sum is σ = 2167680. Its totient is φ = 1445112.

The previous prime is 1806383. The next prime is 1806407. The reversal of 1806395 is 5936081.

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

It is an interprime number because it is at equal distance from previous prime (1806383) and next prime (1806407).

It is a cyclic number.

It is not a de Polignac number, because 1806395 - 2⁴ = 1806379 is a prime.

It is an unprimeable number.

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, 180635 + ... + 180644.

It is an arithmetic number, because the mean of its divisors is an integer number (541920).

2^1806395 is an apocalyptic number.

1806395 is a deficient number, since it is larger than the sum of its proper divisors (361285).

1806395 is an equidigital number, since it uses as much as digits as its factorization.

1806395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361284.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1806395 is about 1344.0219492255. The cubic root of 1806395 is about 121.7879277259.

The spelling of 1806395 in words is "one million, eight hundred six thousand, three hundred ninety-five".