6690672 has 60 divisors (see below), whose sum is σ = 18957120. Its totient is φ = 2202624.

The previous prime is 6690647. The next prime is 6690689. The reversal of 6690672 is 2760966.

It is a super-3 number, since 3×6690672³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13729 + ... + 14207.

It is an arithmetic number, because the mean of its divisors is an integer number (315952).

Almost surely, 2^6690672 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 6690672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9478560).

6690672 is an abundant number, since it is smaller than the sum of its proper divisors (12266448).

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

6690672 is a wasteful number, since it uses less digits than its factorization.

6690672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6690672 is about 2586.6333331186. The cubic root of 6690672 is about 188.4328340140.

The spelling of 6690672 in words is "six million, six hundred ninety thousand, six hundred seventy-two".