1797434 has 4 divisors (see below), whose sum is σ = 2696154. Its totient is φ = 898716.

The previous prime is 1797413. The next prime is 1797437. The reversal of 1797434 is 4347971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4347971 = 17 ⋅255763.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 120409 = 1295^2 + 347^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1797394 and 1797403.

It is not an unprimeable number, because it can be changed into a prime (1797437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449357 + ... + 449360.

2^1797434 is an apocalyptic number.

1797434 is a deficient number, since it is larger than the sum of its proper divisors (898720).

1797434 is an equidigital number, since it uses as much as digits as its factorization.

1797434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898719.

The product of its digits is 21168, while the sum is 35.

The square root of 1797434 is about 1340.6841537066. The cubic root of 1797434 is about 121.5862089767.

It can be divided in two parts, 17974 and 34, that multiplied together give a palindrome (611116).

The spelling of 1797434 in words is "one million, seven hundred ninety-seven thousand, four hundred thirty-four".