6920778 has 8 divisors (see below), whose sum is σ = 13841568. Its totient is φ = 2306924.

The previous prime is 6920773. The next prime is 6920791. The reversal of 6920778 is 8770296.

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

6920778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6920773) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 576726 + ... + 576737.

It is an arithmetic number, because the mean of its divisors is an integer number (1730196).

Almost surely, 2^6920778 is an apocalyptic number.

6920778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6920778 is a wasteful number, since it uses less digits than its factorization.

6920778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153468.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 6920778 is about 2630.7371590488. The cubic root of 6920778 is about 190.5687298932.

The spelling of 6920778 in words is "six million, nine hundred twenty thousand, seven hundred seventy-eight".