17421241 has 4 divisors (see below), whose sum is σ = 17447652. Its totient is φ = 17394832.

The previous prime is 17421227. The next prime is 17421251. The reversal of 17421241 is 14212471.

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 10265616 + 7155625 = 3204^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 17421241 - 2⁷ = 17421113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17421221) 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 in 3 ways as a sum of consecutive naturals, for example, 12190 + ... + 13543.

It is an arithmetic number, because the mean of its divisors is an integer number (4361913).

Almost surely, 2^17421241 is an apocalyptic number.

It is an amenable number.

17421241 is a deficient number, since it is larger than the sum of its proper divisors (26411).

17421241 is an equidigital number, since it uses as much as digits as its factorization.

17421241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26410.

The product of its digits is 448, while the sum is 22.

The square root of 17421241 is about 4173.8760163666. The cubic root of 17421241 is about 259.2346377734.

The spelling of 17421241 in words is "seventeen million, four hundred twenty-one thousand, two hundred forty-one".