4847981 has 2 divisors, whose sum is σ = 4847982. Its totient is φ = 4847980.

The previous prime is 4847957. The next prime is 4847987. The reversal of 4847981 is 1897484.

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., 3118756 + 1729225 = 1766^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4847981 is a prime.

It is a super-2 number, since 2×4847981² = 47005839552722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4847987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2423990 + 2423991.

It is an arithmetic number, because the mean of its divisors is an integer number (2423991).

Almost surely, 2^4847981 is an apocalyptic number.

It is an amenable number.

4847981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4847981 is an equidigital number, since it uses as much as digits as its factorization.

4847981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 4847981 is about 2201.8131165019. The cubic root of 4847981 is about 169.2467364517.

The spelling of 4847981 in words is "four million, eight hundred forty-seven thousand, nine hundred eighty-one".