663260597 has 2 divisors, whose sum is σ = 663260598. Its totient is φ = 663260596.

The previous prime is 663260551. The next prime is 663260621. The reversal of 663260597 is 795062366.

663260597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 574033681 + 89226916 = 23959^2 + 9446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663260597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663260527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331630298 + 331630299.

It is an arithmetic number, because the mean of its divisors is an integer number (331630299).

Almost surely, 2^663260597 is an apocalyptic number.

It is an amenable number.

663260597 is a deficient number, since it is larger than the sum of its proper divisors (1).

663260597 is an equidigital number, since it uses as much as digits as its factorization.

663260597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 663260597 is about 25753.8462564332. The cubic root of 663260597 is about 872.0901858894.

The spelling of 663260597 in words is "six hundred sixty-three million, two hundred sixty thousand, five hundred ninety-seven".