1797385 has 4 divisors (see below), whose sum is σ = 2156868. Its totient is φ = 1437904.

The previous prime is 1797379. The next prime is 1797407. The reversal of 1797385 is 5837971.

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 1373584 + 423801 = 1172^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797385 - 2³ = 1797377 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179734 + ... + 179743.

It is an arithmetic number, because the mean of its divisors is an integer number (539217).

2^1797385 is an apocalyptic number.

It is an amenable number.

1797385 is a deficient number, since it is larger than the sum of its proper divisors (359483).

1797385 is an equidigital number, since it uses as much as digits as its factorization.

1797385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359482.

The product of its digits is 52920, while the sum is 40.

The square root of 1797385 is about 1340.6658793301. The cubic root of 1797385 is about 121.5851041094.

The spelling of 1797385 in words is "one million, seven hundred ninety-seven thousand, three hundred eighty-five".