5893993981 has 2 divisors, whose sum is σ = 5893993982. Its totient is φ = 5893993980.

The previous prime is 5893993979. The next prime is 5893994003. The reversal of 5893993981 is 1893993985.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5726705625 + 167288356 = 75675^2 + 12934^2 .

It is a cyclic number.

It is not a de Polignac number, because 5893993981 - 2¹ = 5893993979 is a prime.

It is a super-2 number, since 2×5893993981² = 69478330096128456722, which contains 22 as substring.

Together with 5893993979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5893993081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2946996990 + 2946996991.

It is an arithmetic number, because the mean of its divisors is an integer number (2946996991).

Almost surely, 2^5893993981 is an apocalyptic number.

It is an amenable number.

5893993981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5893993981 is an equidigital number, since it uses as much as digits as its factorization.

5893993981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18895680, while the sum is 64.

The square root of 5893993981 is about 76772.3516703768. The cubic root of 5893993981 is about 1806.3555148571.

The spelling of 5893993981 in words is "five billion, eight hundred ninety-three million, nine hundred ninety-three thousand, nine hundred eighty-one".