7375981 has 2 divisors, whose sum is σ = 7375982. Its totient is φ = 7375980.

The previous prime is 7375883. The next prime is 7375997. The reversal of 7375981 is 1895737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5152900 + 2223081 = 2270^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 7375981 - 2¹⁵ = 7343213 is a prime.

It is a super-2 number, since 2×7375981² = 108810191424722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7375481) 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 as a sum of consecutive naturals, namely, 3687990 + 3687991.

It is an arithmetic number, because the mean of its divisors is an integer number (3687991).

Almost surely, 2^7375981 is an apocalyptic number.

It is an amenable number.

7375981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7375981 is an equidigital number, since it uses as much as digits as its factorization.

7375981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 7375981 is about 2715.8757335342. The cubic root of 7375981 is about 194.6584509861.

The spelling of 7375981 in words is "seven million, three hundred seventy-five thousand, nine hundred eighty-one".