6701921 has 8 divisors (see below), whose sum is σ = 7106304. Its totient is φ = 6309360.

The previous prime is 6701881. The next prime is 6701923. The reversal of 6701921 is 1291076.

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

It is a cyclic number.

It is not a de Polignac number, because 6701921 - 2¹⁸ = 6439777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6701923) 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, 1775 + ... + 4068.

It is an arithmetic number, because the mean of its divisors is an integer number (888288).

Almost surely, 2^6701921 is an apocalyptic number.

It is an amenable number.

6701921 is a deficient number, since it is larger than the sum of its proper divisors (404383).

6701921 is a wasteful number, since it uses less digits than its factorization.

6701921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 6701921 is about 2588.8068680379. The cubic root of 6701921 is about 188.5383786748.

Adding to 6701921 its reverse (1291076), we get a palindrome (7992997).

The spelling of 6701921 in words is "six million, seven hundred one thousand, nine hundred twenty-one".