4603981 has 2 divisors, whose sum is σ = 4603982. Its totient is φ = 4603980.

The previous prime is 4603919. The next prime is 4603987. The reversal of 4603981 is 1893064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4536900 + 67081 = 2130^2 + 259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4603981 is a prime.

It is a super-2 number, since 2×4603981² = 42393282096722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4603987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2301990 + 2301991.

It is an arithmetic number, because the mean of its divisors is an integer number (2301991).

Almost surely, 2^4603981 is an apocalyptic number.

It is an amenable number.

4603981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4603981 is an equidigital number, since it uses as much as digits as its factorization.

4603981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 4603981 is about 2145.6889336528. The cubic root of 4603981 is about 166.3583129709.

The spelling of 4603981 in words is "four million, six hundred three thousand, nine hundred eighty-one".