1822473 has 8 divisors (see below), whose sum is σ = 2700000. Its totient is φ = 1214964.

The previous prime is 1822463. The next prime is 1822477. The reversal of 1822473 is 3742281.

It is not a de Polignac number, because 1822473 - 2⁵ = 1822441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 67499 = 1822473 / (1 + 8 + 2 + 2 + 4 + 7 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1822477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33723 + ... + 33776.

It is an arithmetic number, because the mean of its divisors is an integer number (337500).

2^1822473 is an apocalyptic number.

It is an amenable number.

1822473 is a deficient number, since it is larger than the sum of its proper divisors (877527).

1822473 is an equidigital number, since it uses as much as digits as its factorization.

1822473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67508 (or 67502 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1822473 is about 1349.9899999630. The cubic root of 1822473 is about 122.1481895399.

Adding to 1822473 its sum of digits (27), we get a square (1822500 = 1350²).

The spelling of 1822473 in words is "one million, eight hundred twenty-two thousand, four hundred seventy-three".