649712034 has 12 divisors (see below), whose sum is σ = 1407709446. Its totient is φ = 216570672.

The previous prime is 649712033. The next prime is 649712051. The reversal of 649712034 is 430217946.

649712034 is a `hidden beast` number, since 649 + 7 + 1 + 2 + 0 + 3 + 4 = 666.

649712034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 597655809 + 52056225 = 24447^2 + 7215^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 649712034.

It is not an unprimeable number, because it can be changed into a prime (649712033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18047539 + ... + 18047574.

Almost surely, 2^649712034 is an apocalyptic number.

649712034 is an abundant number, since it is smaller than the sum of its proper divisors (757997412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649712034 is a wasteful number, since it uses less digits than its factorization.

649712034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36095121 (or 36095118 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 649712034 is about 25489.4494644353. The cubic root of 649712034 is about 866.1111646966. Note that the first 4 decimals are identical.

The spelling of 649712034 in words is "six hundred forty-nine million, seven hundred twelve thousand, thirty-four".