6695778 has 16 divisors (see below), whose sum is σ = 13417056. Its totient is φ = 2227680.

The previous prime is 6695747. The next prime is 6695863. The reversal of 6695778 is 8775966.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5133 + ... + 6303.

It is an arithmetic number, because the mean of its divisors is an integer number (838566).

Almost surely, 2^6695778 is an apocalyptic number.

6695778 is an abundant number, since it is smaller than the sum of its proper divisors (6721278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6695778 is a wasteful number, since it uses less digits than its factorization.

6695778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its digits is 635040, while the sum is 48.

The square root of 6695778 is about 2587.6201421383. The cubic root of 6695778 is about 188.4807561261.

The spelling of 6695778 in words is "six million, six hundred ninety-five thousand, seven hundred seventy-eight".