6675621 has 8 divisors (see below), whose sum is σ = 9108000. Its totient is φ = 4346832.

The previous prime is 6675601. The next prime is 6675649. The reversal of 6675621 is 1265766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6675621 - 2¹³ = 6667429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6675601) 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 7 ways as a sum of consecutive naturals, for example, 25746 + ... + 26003.

It is an arithmetic number, because the mean of its divisors is an integer number (1138500).

Almost surely, 2^6675621 is an apocalyptic number.

It is an amenable number.

6675621 is a deficient number, since it is larger than the sum of its proper divisors (2432379).

6675621 is a wasteful number, since it uses less digits than its factorization.

6675621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51795.

The product of its digits is 15120, while the sum is 33.

The square root of 6675621 is about 2583.7223148009. The cubic root of 6675621 is about 188.2914315810.

The spelling of 6675621 in words is "six million, six hundred seventy-five thousand, six hundred twenty-one".