6506685 has 12 divisors (see below), whose sum is σ = 11278332. Its totient is φ = 3470208.

The previous prime is 6506657. The next prime is 6506693. The reversal of 6506685 is 5866056.

6506685 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1390041 + 5116644 = 1179^2 + 2262^2 .

It is not a de Polignac number, because 6506685 - 2⁷ = 6506557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72252 + ... + 72341.

It is an arithmetic number, because the mean of its divisors is an integer number (939861).

Almost surely, 2^6506685 is an apocalyptic number.

It is an amenable number.

6506685 is a deficient number, since it is larger than the sum of its proper divisors (4771647).

6506685 is a wasteful number, since it uses less digits than its factorization.

6506685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144604 (or 144601 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6506685 is about 2550.8204562454. The cubic root of 6506685 is about 186.6895149895.

The spelling of 6506685 in words is "six million, five hundred six thousand, six hundred eighty-five".