6690748 has 12 divisors (see below), whose sum is σ = 11732112. Its totient is φ = 3338720.

The previous prime is 6690743. The next prime is 6690767. The reversal of 6690748 is 8470966.

It is a super-2 number, since 2×6690748² = 89532217599008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6690748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1113 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (977676).

Almost surely, 2^6690748 is an apocalyptic number.

It is an amenable number.

6690748 is a deficient number, since it is larger than the sum of its proper divisors (5041364).

6690748 is a wasteful number, since it uses less digits than its factorization.

6690748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3330 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6690748 is about 2586.6480239878. The cubic root of 6690748 is about 188.4335474870.

The spelling of 6690748 in words is "six million, six hundred ninety thousand, seven hundred forty-eight".