6778315 has 8 divisors (see below), whose sum is σ = 8414640. Its totient is φ = 5235552.

The previous prime is 6778301. The next prime is 6778319. The reversal of 6778315 is 5138776.

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

It is a cyclic number.

It is not a de Polignac number, because 6778315 - 2⁵ = 6778283 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6778319) 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, 23229 + ... + 23518.

It is an arithmetic number, because the mean of its divisors is an integer number (1051830).

Almost surely, 2^6778315 is an apocalyptic number.

6778315 is a deficient number, since it is larger than the sum of its proper divisors (1636325).

6778315 is a wasteful number, since it uses less digits than its factorization.

6778315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46781.

The product of its digits is 35280, while the sum is 37.

The square root of 6778315 is about 2603.5197329769. The cubic root of 6778315 is about 189.2520456145.

The spelling of 6778315 in words is "six million, seven hundred seventy-eight thousand, three hundred fifteen".