648960269 has 2 divisors, whose sum is σ = 648960270. Its totient is φ = 648960268.

The previous prime is 648960241. The next prime is 648960287. The reversal of 648960269 is 962069846.

648960269 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., 527299369 + 121660900 = 22963^2 + 11030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648960269 is a prime.

It is a super-2 number, since 2×648960269² = 842298861481104722, 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 (648960229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324480134 + 324480135.

It is an arithmetic number, because the mean of its divisors is an integer number (324480135).

Almost surely, 2^648960269 is an apocalyptic number.

It is an amenable number.

648960269 is a deficient number, since it is larger than the sum of its proper divisors (1).

648960269 is an equidigital number, since it uses as much as digits as its factorization.

648960269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 648960269 is about 25474.6986046940. The cubic root of 648960269 is about 865.7769841594.

The spelling of 648960269 in words is "six hundred forty-eight million, nine hundred sixty thousand, two hundred sixty-nine".