649330933 has 2 divisors, whose sum is σ = 649330934. Its totient is φ = 649330932.

The previous prime is 649330907. The next prime is 649330949. The reversal of 649330933 is 339033946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619113924 + 30217009 = 24882^2 + 5497^2 .

It is a cyclic number.

It is not a de Polignac number, because 649330933 - 2¹³ = 649322741 is a prime.

It is a super-3 number, since 3×649330933³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649330973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324665466 + 324665467.

It is an arithmetic number, because the mean of its divisors is an integer number (324665467).

Almost surely, 2^649330933 is an apocalyptic number.

It is an amenable number.

649330933 is a deficient number, since it is larger than the sum of its proper divisors (1).

649330933 is an equidigital number, since it uses as much as digits as its factorization.

649330933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 40.

The square root of 649330933 is about 25481.9727062094. The cubic root of 649330933 is about 865.9417868942.

The spelling of 649330933 in words is "six hundred forty-nine million, three hundred thirty thousand, nine hundred thirty-three".