7918241 has 4 divisors (see below), whose sum is σ = 8007300. Its totient is φ = 7829184.

The previous prime is 7918223. The next prime is 7918291. The reversal of 7918241 is 1428197.

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 3385600 + 4532641 = 1840^2 + 2129^2 .

It is a cyclic number.

It is not a de Polignac number, because 7918241 - 2⁶ = 7918177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7918198 and 7918207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7918201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44396 + ... + 44573.

It is an arithmetic number, because the mean of its divisors is an integer number (2001825).

Almost surely, 2^7918241 is an apocalyptic number.

It is an amenable number.

7918241 is a deficient number, since it is larger than the sum of its proper divisors (89059).

7918241 is an equidigital number, since it uses as much as digits as its factorization.

7918241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89058.

The product of its digits is 4032, while the sum is 32.

The square root of 7918241 is about 2813.9369218232. The cubic root of 7918241 is about 199.3163407127.

The spelling of 7918241 in words is "seven million, nine hundred eighteen thousand, two hundred forty-one".