1822085 has 4 divisors (see below), whose sum is σ = 2186508. Its totient is φ = 1457664.

The previous prime is 1822063. The next prime is 1822091. The reversal of 1822085 is 5802281.

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

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 1592644 = 479^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1822085 - 2⁶ = 1822021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182204 + ... + 182213.

It is an arithmetic number, because the mean of its divisors is an integer number (546627).

2^1822085 is an apocalyptic number.

It is an amenable number.

1822085 is a deficient number, since it is larger than the sum of its proper divisors (364423).

1822085 is an equidigital number, since it uses as much as digits as its factorization.

1822085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364422.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1822085 is about 1349.8462875454. The cubic root of 1822085 is about 122.1395205754.

The spelling of 1822085 in words is "one million, eight hundred twenty-two thousand, eighty-five".