649830693 has 16 divisors (see below), whose sum is σ = 874157120. Its totient is φ = 429376896.

The previous prime is 649830691. The next prime is 649830733. The reversal of 649830693 is 396038946.

649830693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649830693 - 2¹ = 649830691 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 (649830691) 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, 213738 + ... + 216756.

It is an arithmetic number, because the mean of its divisors is an integer number (54634820).

Almost surely, 2^649830693 is an apocalyptic number.

It is an amenable number.

649830693 is a deficient number, since it is larger than the sum of its proper divisors (224326427).

649830693 is a wasteful number, since it uses less digits than its factorization.

649830693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 649830693 is about 25491.7769682696. The cubic root of 649830693 is about 866.1638883770.

The spelling of 649830693 in words is "six hundred forty-nine million, eight hundred thirty thousand, six hundred ninety-three".