6693778 has 16 divisors (see below), whose sum is σ = 12358080. Its totient is φ = 2648016.

The previous prime is 6693773. The next prime is 6693821. The reversal of 6693778 is 8773966.

It is not an unprimeable number, because it can be changed into a prime (6693773) 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, 18208 + ... + 18571.

It is an arithmetic number, because the mean of its divisors is an integer number (772380).

Almost surely, 2^6693778 is an apocalyptic number.

6693778 is a deficient number, since it is larger than the sum of its proper divisors (5664302).

6693778 is a wasteful number, since it uses less digits than its factorization.

6693778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36801.

The product of its digits is 381024, while the sum is 46.

The square root of 6693778 is about 2587.2336577897. The cubic root of 6693778 is about 188.4619881278.

The spelling of 6693778 in words is "six million, six hundred ninety-three thousand, seven hundred seventy-eight".