649036 has 12 divisors (see below), whose sum is σ = 1142680. Its totient is φ = 322560.

The previous prime is 649007. The next prime is 649039. The reversal of 649036 is 630946.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 648995 and 649013.

It is not an unprimeable number, because it can be changed into a prime (649039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460 + ... + 1228.

2⁶⁴⁹⁰³⁶ is an apocalyptic number.

It is an amenable number.

649036 is a deficient number, since it is larger than the sum of its proper divisors (493644).

649036 is a wasteful number, since it uses less digits than its factorization.

649036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 649036 is about 805.6277055812. The cubic root of 649036 is about 86.5810660390.

The spelling of 649036 in words is "six hundred forty-nine thousand, thirty-six".