603928261 has 2 divisors, whose sum is σ = 603928262. Its totient is φ = 603928260.

The previous prime is 603928231. The next prime is 603928271. The reversal of 603928261 is 162829306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570923236 + 33005025 = 23894^2 + 5745^2 .

It is a cyclic number.

It is not a de Polignac number, because 603928261 - 2⁷ = 603928133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 603928261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (603928231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301964130 + 301964131.

It is an arithmetic number, because the mean of its divisors is an integer number (301964131).

Almost surely, 2^603928261 is an apocalyptic number.

It is an amenable number.

603928261 is a deficient number, since it is larger than the sum of its proper divisors (1).

603928261 is an equidigital number, since it uses as much as digits as its factorization.

603928261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 603928261 is about 24574.9519022927. The cubic root of 603928261 is about 845.2693426130.

The spelling of 603928261 in words is "six hundred three million, nine hundred twenty-eight thousand, two hundred sixty-one".