649229 has 8 divisors (see below), whose sum is σ = 747840. Its totient is φ = 552096.

The previous prime is 649217. The next prime is 649261. The reversal of 649229 is 922946.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-649229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 649195 and 649204.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649229.

It is not an unprimeable number, because it can be changed into a prime (649279) 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, 857 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (93480).

2⁶⁴⁹²²⁹ is an apocalyptic number.

It is an amenable number.

649229 is a deficient number, since it is larger than the sum of its proper divisors (98611).

649229 is a wasteful number, since it uses less digits than its factorization.

649229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its digits is 7776, while the sum is 32.

The square root of 649229 is about 805.7474790528. The cubic root of 649229 is about 86.5896472218.

It can be divided in two parts, 649 and 229, that added together give a palindrome (878).

The spelling of 649229 in words is "six hundred forty-nine thousand, two hundred twenty-nine".