7867241 has 4 divisors (see below), whose sum is σ = 7872852. Its totient is φ = 7861632.

The previous prime is 7867213. The next prime is 7867247. The reversal of 7867241 is 1427687.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2088025 + 5779216 = 1445^2 + 2404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7867241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7867247) 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, 1361 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (1968213).

Almost surely, 2^7867241 is an apocalyptic number.

It is an amenable number.

7867241 is a deficient number, since it is larger than the sum of its proper divisors (5611).

7867241 is a wasteful number, since it uses less digits than its factorization.

7867241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610.

The product of its digits is 18816, while the sum is 35.

The square root of 7867241 is about 2804.8602460729. The cubic root of 7867241 is about 198.8874981726.

The spelling of 7867241 in words is "seven million, eight hundred sixty-seven thousand, two hundred forty-one".