1798247 has 4 divisors (see below), whose sum is σ = 1961736. Its totient is φ = 1634760.

The previous prime is 1798241. The next prime is 1798253. The reversal of 1798247 is 7428971.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1798241) and next prime (1798253).

It is a cyclic number.

It is not a de Polignac number, because 1798247 - 2⁶ = 1798183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1798247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81728 + ... + 81749.

It is an arithmetic number, because the mean of its divisors is an integer number (490434).

2^1798247 is an apocalyptic number.

1798247 is a deficient number, since it is larger than the sum of its proper divisors (163489).

1798247 is a wasteful number, since it uses less digits than its factorization.

1798247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163488.

The product of its digits is 28224, while the sum is 38.

The square root of 1798247 is about 1340.9873228334. The cubic root of 1798247 is about 121.6045378255.

Multiplying 1798247 by its sum of digits (38), we get a palindrome (68333386).

The spelling of 1798247 in words is "one million, seven hundred ninety-eight thousand, two hundred forty-seven".