648387367 has 2 divisors, whose sum is σ = 648387368. Its totient is φ = 648387366.

The previous prime is 648387359. The next prime is 648387373. The reversal of 648387367 is 763783846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648387367 - 2³ = 648387359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648387767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324193683 + 324193684.

It is an arithmetic number, because the mean of its divisors is an integer number (324193684).

Almost surely, 2^648387367 is an apocalyptic number.

648387367 is a deficient number, since it is larger than the sum of its proper divisors (1).

648387367 is an equidigital number, since it uses as much as digits as its factorization.

648387367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 52.

The square root of 648387367 is about 25463.4515924295. The cubic root of 648387367 is about 865.5221399011.

The spelling of 648387367 in words is "six hundred forty-eight million, three hundred eighty-seven thousand, three hundred sixty-seven".