6722748 has 18 divisors (see below), whose sum is σ = 16993704. Its totient is φ = 2240904.

The previous prime is 6722747. The next prime is 6722759. The reversal of 6722748 is 8472276.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 186743 = 6722748 / (6 + 7 + 2 + 2 + 7 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93336 + ... + 93407.

Almost surely, 2^6722748 is an apocalyptic number.

It is an amenable number.

6722748 is an abundant number, since it is smaller than the sum of its proper divisors (10270956).

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

6722748 is a wasteful number, since it uses less digits than its factorization.

6722748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186753 (or 186748 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 6722748 is about 2592.8262571950. The cubic root of 6722748 is about 188.7334783720.

The spelling of 6722748 in words is "six million, seven hundred twenty-two thousand, seven hundred forty-eight".