6722528 has 24 divisors (see below), whose sum is σ = 13293000. Its totient is φ = 3346560.

The previous prime is 6722479. The next prime is 6722537. The reversal of 6722528 is 8252276.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 6⁷ + 7³ + 2¹⁷ + 2²¹ + 5⁶ + 2²² + 8⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 6722494 and 6722503.

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 3 ways as a sum of consecutive naturals, for example, 13223 + ... + 13721.

It is an arithmetic number, because the mean of its divisors is an integer number (553875).

Almost surely, 2^6722528 is an apocalyptic number.

It is an amenable number.

6722528 is a deficient number, since it is larger than the sum of its proper divisors (6570472).

6722528 is a wasteful number, since it uses less digits than its factorization.

6722528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 922 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 6722528 is about 2592.7838321002. The cubic root of 6722528 is about 188.7314195999.

The spelling of 6722528 in words is "six million, seven hundred twenty-two thousand, five hundred twenty-eight".