6899712 has 48 divisors (see below), whose sum is σ = 18411120. Its totient is φ = 2297856.

The previous prime is 6899687. The next prime is 6899719. The reversal of 6899712 is 2179986.

It is a tau number, because it is divible by the number of its divisors (48).

It is a d-powerful number, because it can be written as 6 + 8⁷ + 9³ + 9⁷ + 7⁵ + 1 + 2¹¹ .

It is not an unprimeable number, because it can be changed into a prime (6899719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5583 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (383565).

Almost surely, 2^6899712 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 6899712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9205560).

6899712 is an abundant number, since it is smaller than the sum of its proper divisors (11511408).

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

6899712 is a wasteful number, since it uses less digits than its factorization.

6899712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1128 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 6899712 is about 2626.7302868776. The cubic root of 6899712 is about 190.3751774245.

It can be divided in two parts, 689 and 9712, that added together give a palindrome (10401).

The spelling of 6899712 in words is "six million, eight hundred ninety-nine thousand, seven hundred twelve".