1820795 has 16 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 1367520.

The previous prime is 1820783. The next prime is 1820809. The reversal of 1820795 is 5970281.

It is not a de Polignac number, because 1820795 - 2¹² = 1816699 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8054 + ... + 8276.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2^1820795 is an apocalyptic number.

1820795 is a deficient number, since it is larger than the sum of its proper divisors (501637).

1820795 is a wasteful number, since it uses less digits than its factorization.

1820795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1820795 is about 1349.3683707572. The cubic root of 1820795 is about 122.1106896520.

The spelling of 1820795 in words is "one million, eight hundred twenty thousand, seven hundred ninety-five".