6890320 has 40 divisors (see below), whose sum is σ = 16400736. Its totient is φ = 2690688.

The previous prime is 6890309. The next prime is 6890327. The reversal of 6890320 is 230986.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890327) 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, 2439 + ... + 4441.

Almost surely, 2^6890320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6890320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8200368).

6890320 is an abundant number, since it is smaller than the sum of its proper divisors (9510416).

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

6890320 is a wasteful number, since it uses less digits than its factorization.

6890320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6890320 is about 2624.9419041190. The cubic root of 6890320 is about 190.2887576065.

The spelling of 6890320 in words is "six million, eight hundred ninety thousand, three hundred twenty".