649748 has 12 divisors (see below), whose sum is σ = 1240512. Its totient is φ = 295320.

The previous prime is 649739. The next prime is 649751. The reversal of 649748 is 847946.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7340 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (103376).

2⁶⁴⁹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

649748 is a deficient number, since it is larger than the sum of its proper divisors (590764).

649748 is a wasteful number, since it uses less digits than its factorization.

649748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14782 (or 14780 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 649748 is about 806.0694759138. The cubic root of 649748 is about 86.6127146125.

The spelling of 649748 in words is "six hundred forty-nine thousand, seven hundred forty-eight".