649590311 has 12 divisors (see below), whose sum is σ = 680800512. Its totient is φ = 619756896.

The previous prime is 649590299. The next prime is 649590323. The reversal of 649590311 is 113095946.

It is an interprime number because it is at equal distance from previous prime (649590299) and next prime (649590323).

It is not a de Polignac number, because 649590311 - 2¹⁰ = 649589287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649590341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240410 + ... + 243096.

It is an arithmetic number, because the mean of its divisors is an integer number (56733376).

Almost surely, 2^649590311 is an apocalyptic number.

649590311 is a deficient number, since it is larger than the sum of its proper divisors (31210201).

649590311 is a wasteful number, since it uses less digits than its factorization.

649590311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 649590311 is about 25487.0616391925. The cubic root of 649590311 is about 866.0570729204.

The spelling of 649590311 in words is "six hundred forty-nine million, five hundred ninety thousand, three hundred eleven".