649927029 has 8 divisors (see below), whose sum is σ = 866886592. Its totient is φ = 433126080.

The previous prime is 649926989. The next prime is 649927037. The reversal of 649927029 is 920729946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649927029 - 2¹¹ = 649924981 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 (649927049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29737 + ... + 46734.

It is an arithmetic number, because the mean of its divisors is an integer number (108360824).

Almost surely, 2^649927029 is an apocalyptic number.

It is an amenable number.

649927029 is a deficient number, since it is larger than the sum of its proper divisors (216959563).

649927029 is a wasteful number, since it uses less digits than its factorization.

649927029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79307.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 649927029 is about 25493.6664487476. Note that the first 3 decimals coincide. The cubic root of 649927029 is about 866.2066885720.

The spelling of 649927029 in words is "six hundred forty-nine million, nine hundred twenty-seven thousand, twenty-nine".