649650963 has 16 divisors (see below), whose sum is σ = 935494560. Its totient is φ = 398644224.

The previous prime is 649650949. The next prime is 649650977. The reversal of 649650963 is 369056946.

It is a happy number.

649650963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (649650949) and next prime (649650977).

It is not a de Polignac number, because 649650963 - 2⁸ = 649650707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649650913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9828 + ... + 37361.

It is an arithmetic number, because the mean of its divisors is an integer number (58468410).

Almost surely, 2^649650963 is an apocalyptic number.

649650963 is a deficient number, since it is larger than the sum of its proper divisors (285843597).

649650963 is a wasteful number, since it uses less digits than its factorization.

649650963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47558.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The square root of 649650963 is about 25488.2514700401. The cubic root of 649650963 is about 866.0840265546.

The spelling of 649650963 in words is "six hundred forty-nine million, six hundred fifty thousand, nine hundred sixty-three".