7004953981 has 2 divisors, whose sum is σ = 7004953982. Its totient is φ = 7004953980.

The previous prime is 7004953957. The next prime is 7004954003. The reversal of 7004953981 is 1893594007.

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., 6866773956 + 138180025 = 82866^2 + 11755^2 .

It is an emirp because it is prime and its reverse (1893594007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7004953981 - 2²¹ = 7002856829 is a prime.

It is a super-2 number, since 2×7004953981² = 98138760551855496722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7004953481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3502476990 + 3502476991.

It is an arithmetic number, because the mean of its divisors is an integer number (3502476991).

Almost surely, 2^7004953981 is an apocalyptic number.

It is an amenable number.

7004953981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7004953981 is an equidigital number, since it uses as much as digits as its factorization.

7004953981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 7004953981 is about 83695.6031162928. The cubic root of 7004953981 is about 1913.3823442029.

The spelling of 7004953981 in words is "seven billion, four million, nine hundred fifty-three thousand, nine hundred eighty-one".