6643348 has 6 divisors (see below), whose sum is σ = 11625866. Its totient is φ = 3321672.

The previous prime is 6643337. The next prime is 6643361. The reversal of 6643348 is 8433466.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 232324 = 2532^2 + 482^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830415 + ... + 830422.

Almost surely, 2^6643348 is an apocalyptic number.

It is an amenable number.

6643348 is a deficient number, since it is larger than the sum of its proper divisors (4982518).

6643348 is a wasteful number, since it uses less digits than its factorization.

6643348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660841 (or 1660839 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 6643348 is about 2577.4693014661. The cubic root of 6643348 is about 187.9875123741.

The spelling of 6643348 in words is "six million, six hundred forty-three thousand, three hundred forty-eight".