7073981 has 2 divisors, whose sum is σ = 7073982. Its totient is φ = 7073980.

The previous prime is 7073959. The next prime is 7074013. The reversal of 7073981 is 1893707.

7073981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 2805625 = 2066^2 + 1675^2 .

It is an emirp because it is prime and its reverse (1893707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7073981 - 2⁶ = 7073917 is a prime.

It is a super-2 number, since 2×7073981² = 100082414376722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7073281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536990 + 3536991.

It is an arithmetic number, because the mean of its divisors is an integer number (3536991).

Almost surely, 2^7073981 is an apocalyptic number.

It is an amenable number.

7073981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7073981 is an equidigital number, since it uses as much as digits as its factorization.

7073981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 7073981 is about 2659.6956592813. The cubic root of 7073981 is about 191.9646654450.

The spelling of 7073981 in words is "seven million, seventy-three thousand, nine hundred eighty-one".