649089 has 12 divisors (see below), whose sum is σ = 1071616. Its totient is φ = 370872.

The previous prime is 649087. The next prime is 649093. The reversal of 649089 is 980946.

649089 is a `hidden beast` number, since 649 + 0 + 8 + 9 = 666.

649089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649089 - 2¹ = 649087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5089 + ... + 5214.

2⁶⁴⁹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

649089 is a deficient number, since it is larger than the sum of its proper divisors (422527).

649089 is a wasteful number, since it uses less digits than its factorization.

649089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316 (or 10313 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 649089 is about 805.6605985153. The cubic root of 649089 is about 86.5834226990.

The spelling of 649089 in words is "six hundred forty-nine thousand, eighty-nine".