6609372 has 96 divisors (see below), whose sum is σ = 20127744. Its totient is φ = 1636800.

The previous prime is 6609353. The next prime is 6609409. The reversal of 6609372 is 2739066.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21097 + ... + 21407.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

Almost surely, 2^6609372 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 6609372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10063872).

6609372 is an abundant number, since it is smaller than the sum of its proper divisors (13518372).

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

6609372 is a wasteful number, since it uses less digits than its factorization.

6609372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 6609372 is about 2570.8698916904. The cubic root of 6609372 is about 187.6664903436. Note that the first 3 decimals are identical.

Adding to 6609372 its product of nonzero digits (13608), we get a triangular number (6622980 = T₃₆₃₉).

The spelling of 6609372 in words is "six million, six hundred nine thousand, three hundred seventy-two".