6897513 has 32 divisors (see below), whose sum is σ = 11289600. Its totient is φ = 3658176.

The previous prime is 6897509. The next prime is 6897521. The reversal of 6897513 is 3157986.

It is not a de Polignac number, because 6897513 - 2² = 6897509 is a prime.

It is a d-powerful number, because it can be written as 6³ + 8⁷ + 9⁷ + 7⁵ + 5³ + 1 + 3⁵ .

It is not an unprimeable number, because it can be changed into a prime (6897523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23395 + ... + 23687.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^6897513 is an apocalyptic number.

It is an amenable number.

6897513 is a deficient number, since it is larger than the sum of its proper divisors (4392087).

6897513 is a wasteful number, since it uses less digits than its factorization.

6897513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its digits is 45360, while the sum is 39.

The square root of 6897513 is about 2626.3116722887. The cubic root of 6897513 is about 190.3549505176.

It can be divided in two parts, 6897 and 513, that multiplied together give a square (3538161 = 1881²).

The spelling of 6897513 in words is "six million, eight hundred ninety-seven thousand, five hundred thirteen".