6906648 has 64 divisors (see below), whose sum is σ = 20160000. Its totient is φ = 1970976.

The previous prime is 6906637. The next prime is 6906649. The reversal of 6906648 is 8466096.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906649) 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, 7813 + ... + 8651.

It is an arithmetic number, because the mean of its divisors is an integer number (315000).

Almost surely, 2^6906648 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 6906648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10080000).

6906648 is an abundant number, since it is smaller than the sum of its proper divisors (13253352).

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

6906648 is a wasteful number, since it uses less digits than its factorization.

6906648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 6906648 is about 2628.0502278305. The cubic root of 6906648 is about 190.4389482029.

The spelling of 6906648 in words is "six million, nine hundred six thousand, six hundred forty-eight".