6490665 has 16 divisors (see below), whose sum is σ = 11539200. Its totient is φ = 3461616.

The previous prime is 6490663. The next prime is 6490667. The reversal of 6490665 is 5660946.

It is a happy number.

6490665 is a `hidden beast` number, since 649 + 0 + 6 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (6490663) and next prime (6490667).

It is not a de Polignac number, because 6490665 - 2¹ = 6490663 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6490661) 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, 23905 + ... + 24174.

It is an arithmetic number, because the mean of its divisors is an integer number (721200).

Almost surely, 2^6490665 is an apocalyptic number.

It is an amenable number.

6490665 is a deficient number, since it is larger than the sum of its proper divisors (5048535).

6490665 is a wasteful number, since it uses less digits than its factorization.

6490665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48093 (or 48087 counting only the distinct ones).

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

The square root of 6490665 is about 2547.6783548949. The cubic root of 6490665 is about 186.5361740333.

The spelling of 6490665 in words is "six million, four hundred ninety thousand, six hundred sixty-five".