648058667 has 2 divisors, whose sum is σ = 648058668. Its totient is φ = 648058666.

The previous prime is 648058643. The next prime is 648058673. The reversal of 648058667 is 766850846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648058667 - 2¹² = 648054571 is a prime.

It is not a weakly prime, because it can be changed into another prime (648058637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324029333 + 324029334.

It is an arithmetic number, because the mean of its divisors is an integer number (324029334).

Almost surely, 2^648058667 is an apocalyptic number.

648058667 is a deficient number, since it is larger than the sum of its proper divisors (1).

648058667 is an equidigital number, since it uses as much as digits as its factorization.

648058667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 648058667 is about 25456.9964253444. The cubic root of 648058667 is about 865.3758563518.

The spelling of 648058667 in words is "six hundred forty-eight million, fifty-eight thousand, six hundred sixty-seven".