6889740 has 144 divisors (see below), whose sum is σ = 23148384. Its totient is φ = 1520640.

The previous prime is 6889739. The next prime is 6889741. The reversal of 6889740 is 479886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6889739) and next prime (6889741).

It is a junction number, because it is equal to n+sod(n) for n = 6889692 and 6889701.

It is not an unprimeable number, because it can be changed into a prime (6889741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94344 + ... + 94416.

Almost surely, 2^6889740 is an apocalyptic number.

6889740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6889740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11574192).

6889740 is an abundant number, since it is smaller than the sum of its proper divisors (16258644).

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

6889740 is a wasteful number, since it uses less digits than its factorization.

6889740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 6889740 is about 2624.8314231584. The cubic root of 6889740 is about 190.2834182039.

The spelling of 6889740 in words is "six million, eight hundred eighty-nine thousand, seven hundred forty".