649396411 has 2 divisors, whose sum is σ = 649396412. Its totient is φ = 649396410.

The previous prime is 649396403. The next prime is 649396441. The reversal of 649396411 is 114693946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 649396411 - 2³ = 649396403 is a prime.

It is not a weakly prime, because it can be changed into another prime (649396441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324698205 + 324698206.

It is an arithmetic number, because the mean of its divisors is an integer number (324698206).

Almost surely, 2^649396411 is an apocalyptic number.

649396411 is a deficient number, since it is larger than the sum of its proper divisors (1).

649396411 is an equidigital number, since it uses as much as digits as its factorization.

649396411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 649396411 is about 25483.2574644609. The cubic root of 649396411 is about 865.9708928697.

The spelling of 649396411 in words is "six hundred forty-nine million, three hundred ninety-six thousand, four hundred eleven".