6884890 has 16 divisors (see below), whose sum is σ = 12820680. Its totient is φ = 2658880.

The previous prime is 6884869. The next prime is 6884893. The reversal of 6884890 is 984886.

It can be written as a sum of positive squares in 4 ways, for example, as 6827769 + 57121 = 2613^2 + 239^2 .

It is not an unprimeable number, because it can be changed into a prime (6884893) 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, 11581 + ... + 12160.

Almost surely, 2^6884890 is an apocalyptic number.

6884890 is a deficient number, since it is larger than the sum of its proper divisors (5935790).

6884890 is a wasteful number, since it uses less digits than its factorization.

6884890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23777.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 6884890 is about 2623.9073916585. The cubic root of 6884890 is about 190.2387580177.

The spelling of 6884890 in words is "six million, eight hundred eighty-four thousand, eight hundred ninety".