817241 has 4 divisors (see below), whose sum is σ = 865332. Its totient is φ = 769152.

The previous prime is 817237. The next prime is 817273. The reversal of 817241 is 142718.

817241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142718 = 2 ⋅71359.

It can be written as a sum of positive squares in 2 ways, for example, as 640000 + 177241 = 800^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 817241 - 2² = 817237 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (817211) 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, 24020 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (216333).

2⁸¹⁷²⁴¹ is an apocalyptic number.

It is an amenable number.

817241 is a deficient number, since it is larger than the sum of its proper divisors (48091).

817241 is a wasteful number, since it uses less digits than its factorization.

817241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48090.

The product of its digits is 448, while the sum is 23.

The square root of 817241 is about 904.0138273279. The cubic root of 817241 is about 93.4939227941.

Adding to 817241 its reverse (142718), we get a palindrome (959959).

The spelling of 817241 in words is "eight hundred seventeen thousand, two hundred forty-one".