6928890 has 32 divisors (see below), whose sum is σ = 16868736. Its totient is φ = 1821120.

The previous prime is 6928871. The next prime is 6928897. The reversal of 6928890 is 988296.

It is not an unprimeable number, because it can be changed into a prime (6928897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (527148).

Almost surely, 2^6928890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6928890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8434368).

6928890 is an abundant number, since it is smaller than the sum of its proper divisors (9939846).

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

6928890 is a wasteful number, since it uses less digits than its factorization.

6928890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 6928890 is about 2632.2784807083. The cubic root of 6928890 is about 190.6431574570.

It can be divided in two parts, 69288 and 90, that added together give a triangular number (69378 = T₃₇₂).

The spelling of 6928890 in words is "six million, nine hundred twenty-eight thousand, eight hundred ninety".