6885513 has 8 divisors (see below), whose sum is σ = 10200800. Its totient is φ = 4590324.

The previous prime is 6885511. The next prime is 6885517. The reversal of 6885513 is 3155886.

6885513 is a `hidden beast` number, since 68 + 85 + 513 = 666.

It is not a de Polignac number, because 6885513 - 2¹ = 6885511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6885511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127483 + ... + 127536.

It is an arithmetic number, because the mean of its divisors is an integer number (1275100).

Almost surely, 2^6885513 is an apocalyptic number.

It is an amenable number.

6885513 is a deficient number, since it is larger than the sum of its proper divisors (3315287).

6885513 is a wasteful number, since it uses less digits than its factorization.

6885513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255028 (or 255022 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 6885513 is about 2624.0261050531. The cubic root of 6885513 is about 190.2444959536.

The spelling of 6885513 in words is "six million, eight hundred eighty-five thousand, five hundred thirteen".