6621248 has 14 divisors (see below), whose sum is σ = 13139166. Its totient is φ = 3310592.

The previous prime is 6621239. The next prime is 6621281. The reversal of 6621248 is 8421266.

It can be written as a sum of positive squares in only one way, i.e., 5161984 + 1459264 = 2272^2 + 1208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6621248.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51665 + ... + 51792.

Almost surely, 2^6621248 is an apocalyptic number.

It is an amenable number.

6621248 is a deficient number, since it is larger than the sum of its proper divisors (6517918).

6621248 is a wasteful number, since it uses less digits than its factorization.

6621248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103469 (or 103459 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 6621248 is about 2573.1785791118. The cubic root of 6621248 is about 187.7788254580.

The spelling of 6621248 in words is "six million, six hundred twenty-one thousand, two hundred forty-eight".