6674921 has 4 divisors (see below), whose sum is σ = 7281744. Its totient is φ = 6068100.

The previous prime is 6674917. The next prime is 6674929. The reversal of 6674921 is 1294766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6674921 - 2² = 6674917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6674929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303395 + ... + 303416.

It is an arithmetic number, because the mean of its divisors is an integer number (1820436).

Almost surely, 2^6674921 is an apocalyptic number.

It is an amenable number.

6674921 is a deficient number, since it is larger than the sum of its proper divisors (606823).

6674921 is a wasteful number, since it uses less digits than its factorization.

6674921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606822.

The product of its digits is 18144, while the sum is 35.

The square root of 6674921 is about 2583.5868477758. The cubic root of 6674921 is about 188.2848499906.

The spelling of 6674921 in words is "six million, six hundred seventy-four thousand, nine hundred twenty-one".