6330921 has 8 divisors (see below), whose sum is σ = 8455680. Its totient is φ = 4213392.

The previous prime is 6330917. The next prime is 6330923. The reversal of 6330921 is 1290336.

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

It is not a de Polignac number, because 6330921 - 2² = 6330917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6330891 and 6330900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6330923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760 + ... + 3638.

It is an arithmetic number, because the mean of its divisors is an integer number (1056960).

Almost surely, 2^6330921 is an apocalyptic number.

It is an amenable number.

6330921 is a deficient number, since it is larger than the sum of its proper divisors (2124759).

6330921 is a wasteful number, since it uses less digits than its factorization.

6330921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 6330921 is about 2516.1321507425. The cubic root of 6330921 is about 184.9931431595.

The spelling of 6330921 in words is "six million, three hundred thirty thousand, nine hundred twenty-one".