648349279 has 2 divisors, whose sum is σ = 648349280. Its totient is φ = 648349278.

The previous prime is 648349267. The next prime is 648349291. The reversal of 648349279 is 972943846.

It is a happy number.

648349279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (648349267) and next prime (648349291).

It is a cyclic number.

It is not a de Polignac number, because 648349279 - 2²⁵ = 614794847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648349379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324174639 + 324174640.

It is an arithmetic number, because the mean of its divisors is an integer number (324174640).

Almost surely, 2^648349279 is an apocalyptic number.

648349279 is a deficient number, since it is larger than the sum of its proper divisors (1).

648349279 is an equidigital number, since it uses as much as digits as its factorization.

648349279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The square root of 648349279 is about 25462.7036859796. The cubic root of 648349279 is about 865.5051918778.

The spelling of 648349279 in words is "six hundred forty-eight million, three hundred forty-nine thousand, two hundred seventy-nine".