649329 has 8 divisors (see below), whose sum is σ = 874752. Its totient is φ = 428400.

The previous prime is 649321. The next prime is 649361. The reversal of 649329 is 923946.

649329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 649329 - 2³ = 649321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 649329.

It is not an unprimeable number, because it can be changed into a prime (649321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (109344).

2⁶⁴⁹³²⁹ is an apocalyptic number.

It is an amenable number.

649329 is a deficient number, since it is larger than the sum of its proper divisors (225423).

649329 is a wasteful number, since it uses less digits than its factorization.

649329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247.

The product of its digits is 11664, while the sum is 33.

The square root of 649329 is about 805.8095308446. The cubic root of 649329 is about 86.5940927616.

The spelling of 649329 in words is "six hundred forty-nine thousand, three hundred twenty-nine".