6657472 has 56 divisors (see below), whose sum is σ = 14538960. Its totient is φ = 3010560.

The previous prime is 6657461. The next prime is 6657473. The reversal of 6657472 is 2747566.

6657472 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657473) 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, 31447 + ... + 31657.

Almost surely, 2^6657472 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 6657472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7269480).

6657472 is an abundant number, since it is smaller than the sum of its proper divisors (7881488).

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

6657472 is a wasteful number, since it uses less digits than its factorization.

6657472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 259 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 6657472 is about 2580.2077435741. The cubic root of 6657472 is about 188.1206408411.

The spelling of 6657472 in words is "six million, six hundred fifty-seven thousand, four hundred seventy-two".