6878155 has 8 divisors (see below), whose sum is σ = 8317584. Its totient is φ = 5460000.

The previous prime is 6878143. The next prime is 6878167. The reversal of 6878155 is 5518786.

It is an interprime number because it is at equal distance from previous prime (6878143) and next prime (6878167).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6878155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4596 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (1039698).

Almost surely, 2^6878155 is an apocalyptic number.

6878155 is a deficient number, since it is larger than the sum of its proper divisors (1439429).

6878155 is a wasteful number, since it uses less digits than its factorization.

6878155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637.

The product of its digits is 67200, while the sum is 40.

The square root of 6878155 is about 2622.6236863111. The cubic root of 6878155 is about 190.1767054141.

The spelling of 6878155 in words is "six million, eight hundred seventy-eight thousand, one hundred fifty-five".