6729228 has 36 divisors (see below), whose sum is σ = 18557448. Its totient is φ = 2039040.

The previous prime is 6729223. The next prime is 6729241. The reversal of 6729228 is 8229276.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 6729192 and 6729201.

It is not an unprimeable number, because it can be changed into a prime (6729223) by changing a digit.

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, 8101 + ... + 8892.

Almost surely, 2^6729228 is an apocalyptic number.

It is an amenable number.

6729228 is an abundant number, since it is smaller than the sum of its proper divisors (11828220).

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

6729228 is a wasteful number, since it uses less digits than its factorization.

6729228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17014 (or 17009 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6729228 is about 2594.0755578818. The cubic root of 6729228 is about 188.7940984342.

The spelling of 6729228 in words is "six million, seven hundred twenty-nine thousand, two hundred twenty-eight".