649004589 has 16 divisors (see below), whose sum is σ = 962115840. Its totient is φ = 432387360.

The previous prime is 649004581. The next prime is 649004591. The reversal of 649004589 is 985400946.

It is a happy number.

649004589 is a `hidden beast` number, since 64 + 9 + 0 + 0 + 4 + 589 = 666.

649004589 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 649004589 - 2³ = 649004581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649004581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39484 + ... + 53450.

It is an arithmetic number, because the mean of its divisors is an integer number (60132240).

Almost surely, 2^649004589 is an apocalyptic number.

It is an amenable number.

649004589 is a deficient number, since it is larger than the sum of its proper divisors (313111251).

649004589 is a wasteful number, since it uses less digits than its factorization.

649004589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697 (or 15691 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 649004589 is about 25475.5684725582. The cubic root of 649004589 is about 865.7966927940.

The spelling of 649004589 in words is "six hundred forty-nine million, four thousand, five hundred eighty-nine".