1798489 has 8 divisors (see below), whose sum is σ = 2242368. Its totient is φ = 1401360.

The previous prime is 1798487. The next prime is 1798519. The reversal of 1798489 is 9848971.

1798489 = 22² + 23² + ... + 175².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1798489 - 2¹ = 1798487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798487) 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, 11602 + ... + 11755.

It is an arithmetic number, because the mean of its divisors is an integer number (280296).

2^1798489 is an apocalyptic number.

It is an amenable number.

1798489 is a deficient number, since it is larger than the sum of its proper divisors (443879).

1798489 is a wasteful number, since it uses less digits than its factorization.

1798489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375.

The product of its digits is 145152, while the sum is 46.

The square root of 1798489 is about 1341.0775518217. The cubic root of 1798489 is about 121.6099925782.

It can be divided in two parts, 179 and 8489, that added together give a palindrome (8668).

The spelling of 1798489 in words is "one million, seven hundred ninety-eight thousand, four hundred eighty-nine".