7934981 has 2 divisors, whose sum is σ = 7934982. Its totient is φ = 7934980.

The previous prime is 7934959. The next prime is 7934987. The reversal of 7934981 is 1894397.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 1018081 = 2630^2 + 1009^2 .

It is an emirp because it is prime and its reverse (1894397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7934981 - 2⁶ = 7934917 is a prime.

It is a super-2 number, since 2×7934981² = 125927846940722, 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 (7934987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3967490 + 3967491.

It is an arithmetic number, because the mean of its divisors is an integer number (3967491).

Almost surely, 2^7934981 is an apocalyptic number.

It is an amenable number.

7934981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7934981 is an equidigital number, since it uses as much as digits as its factorization.

7934981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 7934981 is about 2816.9098317128. The cubic root of 7934981 is about 199.4567004645.

The spelling of 7934981 in words is "seven million, nine hundred thirty-four thousand, nine hundred eighty-one".