6898513 has 4 divisors (see below), whose sum is σ = 6952960. Its totient is φ = 6844068.

The previous prime is 6898511. The next prime is 6898531. The reversal of 6898513 is 3158986.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6898513 - 2¹ = 6898511 is a prime.

It is a super-2 number, since 2×6898513² = 95178963222338, which contains 22 as substring.

It is a Duffinian number.

6898513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6898511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27033 + ... + 27286.

It is an arithmetic number, because the mean of its divisors is an integer number (1738240).

Almost surely, 2^6898513 is an apocalyptic number.

It is an amenable number.

6898513 is a deficient number, since it is larger than the sum of its proper divisors (54447).

6898513 is a wasteful number, since it uses less digits than its factorization.

6898513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54446.

The product of its digits is 51840, while the sum is 40.

The square root of 6898513 is about 2626.5020464489. The cubic root of 6898513 is about 190.3641492801.

The spelling of 6898513 in words is "six million, eight hundred ninety-eight thousand, five hundred thirteen".