1797122 has 4 divisors (see below), whose sum is σ = 2695686. Its totient is φ = 898560.

The previous prime is 1797109. The next prime is 1797161. The reversal of 1797122 is 2217971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2217971 = 7 ⋅316853.

It can be written as a sum of positive squares in only one way, i.e., 1190281 + 606841 = 1091^2 + 779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449279 + ... + 449282.

2^1797122 is an apocalyptic number.

1797122 is a deficient number, since it is larger than the sum of its proper divisors (898564).

1797122 is an equidigital number, since it uses as much as digits as its factorization.

1797122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898563.

The product of its digits is 1764, while the sum is 29.

The square root of 1797122 is about 1340.5677901546. The cubic root of 1797122 is about 121.5791735599.

The spelling of 1797122 in words is "one million, seven hundred ninety-seven thousand, one hundred twenty-two".