6878513 has 4 divisors (see below), whose sum is σ = 7240560. Its totient is φ = 6516468.

The previous prime is 6878491. The next prime is 6878519. The reversal of 6878513 is 3158786.

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 not a de Polignac number, because 6878513 - 2¹⁰ = 6877489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6878519) 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, 180995 + ... + 181032.

It is an arithmetic number, because the mean of its divisors is an integer number (1810140).

Almost surely, 2^6878513 is an apocalyptic number.

It is an amenable number.

6878513 is a deficient number, since it is larger than the sum of its proper divisors (362047).

6878513 is a wasteful number, since it uses less digits than its factorization.

6878513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362046.

The product of its digits is 40320, while the sum is 38.

The square root of 6878513 is about 2622.6919376854. The cubic root of 6878513 is about 190.1800048492.

The spelling of 6878513 in words is "six million, eight hundred seventy-eight thousand, five hundred thirteen".