7441981 has 2 divisors, whose sum is σ = 7441982. Its totient is φ = 7441980.

The previous prime is 7441969. The next prime is 7441997. The reversal of 7441981 is 1891447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7371225 + 70756 = 2715^2 + 266^2 .

It is an emirp because it is prime and its reverse (1891447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7441981 - 2¹¹ = 7439933 is a prime.

It is a super-2 number, since 2×7441981² = 110766162408722, which contains 22 as substring.

7441981 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7441961) 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 as a sum of consecutive naturals, namely, 3720990 + 3720991.

It is an arithmetic number, because the mean of its divisors is an integer number (3720991).

Almost surely, 2^7441981 is an apocalyptic number.

It is an amenable number.

7441981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7441981 is an equidigital number, since it uses as much as digits as its factorization.

7441981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 7441981 is about 2727.9994501466. Note that the first 3 decimals coincide. The cubic root of 7441981 is about 195.2373266459.

The spelling of 7441981 in words is "seven million, four hundred forty-one thousand, nine hundred eighty-one".