6989868 has 48 divisors (see below), whose sum is σ = 18436320. Its totient is φ = 2289600.

The previous prime is 6989833. The next prime is 6989869. The reversal of 6989868 is 8689896.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6989869) 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, 6058 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (384090).

Almost surely, 2^6989868 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 6989868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9218160).

6989868 is an abundant number, since it is smaller than the sum of its proper divisors (11446452).

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

6989868 is a wasteful number, since it uses less digits than its factorization.

6989868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1127 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 6989868 is about 2643.8358496699. The cubic root of 6989868 is about 191.2007793366.

The spelling of 6989868 in words is "six million, nine hundred eighty-nine thousand, eight hundred sixty-eight".