603981641 has 2 divisors, whose sum is σ = 603981642. Its totient is φ = 603981640.

The previous prime is 603981589. The next prime is 603981659. The reversal of 603981641 is 146189306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363855625 + 240126016 = 19075^2 + 15496^2 .

It is a cyclic number.

It is not a de Polignac number, because 603981641 - 2¹⁰ = 603980617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 603981595 and 603981604.

It is not a weakly prime, because it can be changed into another prime (603986641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301990820 + 301990821.

It is an arithmetic number, because the mean of its divisors is an integer number (301990821).

Almost surely, 2^603981641 is an apocalyptic number.

It is an amenable number.

603981641 is a deficient number, since it is larger than the sum of its proper divisors (1).

603981641 is an equidigital number, since it uses as much as digits as its factorization.

603981641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 603981641 is about 24576.0379434928. The cubic root of 603981641 is about 845.2942457630.

The spelling of 603981641 in words is "six hundred three million, nine hundred eighty-one thousand, six hundred forty-one".