5660649 has 12 divisors (see below), whose sum is σ = 8367216. Its totient is φ = 3685752.

The previous prime is 5660623. The next prime is 5660653. The reversal of 5660649 is 9460665.

It is a happy number.

5660649 is a `hidden beast` number, since 5 + 6 + 6 + 0 + 649 = 666.

It is not a de Polignac number, because 5660649 - 2⁷ = 5660521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5660449) 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, 6927 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (697268).

Almost surely, 2^5660649 is an apocalyptic number.

It is an amenable number.

5660649 is a deficient number, since it is larger than the sum of its proper divisors (2706567).

5660649 is a wasteful number, since it uses less digits than its factorization.

5660649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676 (or 14673 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 5660649 is about 2379.2118442879. The cubic root of 5660649 is about 178.2195771060.

The spelling of 5660649 in words is "five million, six hundred sixty thousand, six hundred forty-nine".