648792229 has 2 divisors, whose sum is σ = 648792230. Its totient is φ = 648792228.

The previous prime is 648792217. The next prime is 648792281. The reversal of 648792229 is 922297846.

648792229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497379204 + 151413025 = 22302^2 + 12305^2 .

It is a cyclic number.

It is not a de Polignac number, because 648792229 - 2⁷ = 648792101 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 (648792329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324396114 + 324396115.

It is an arithmetic number, because the mean of its divisors is an integer number (324396115).

Almost surely, 2^648792229 is an apocalyptic number.

It is an amenable number.

648792229 is a deficient number, since it is larger than the sum of its proper divisors (1).

648792229 is an equidigital number, since it uses as much as digits as its factorization.

648792229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 648792229 is about 25471.4002167136. The cubic root of 648792229 is about 865.7022503992.

The spelling of 648792229 in words is "six hundred forty-eight million, seven hundred ninety-two thousand, two hundred twenty-nine".