1798826 has 4 divisors (see below), whose sum is σ = 2698242. Its totient is φ = 899412.

The previous prime is 1798817. The next prime is 1798861. The reversal of 1798826 is 6288971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6288971 = 13 ⋅483767.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 121801 = 1295^2 + 349^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449705 + ... + 449708.

2^1798826 is an apocalyptic number.

1798826 is a deficient number, since it is larger than the sum of its proper divisors (899416).

1798826 is an equidigital number, since it uses as much as digits as its factorization.

1798826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899415.

The product of its digits is 48384, while the sum is 41.

The square root of 1798826 is about 1341.2031911683. The cubic root of 1798826 is about 121.6175878444.

The spelling of 1798826 in words is "one million, seven hundred ninety-eight thousand, eight hundred twenty-six".