6911121 has 8 divisors (see below), whose sum is σ = 10531264. Its totient is φ = 3949200.

The previous prime is 6911101. The next prime is 6911131. The reversal of 6911121 is 1211196.

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

It is not a de Polignac number, because 6911121 - 2⁶ = 6911057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 329101 = 6911121 / (6 + 9 + 1 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6911101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164530 + ... + 164571.

It is an arithmetic number, because the mean of its divisors is an integer number (1316408).

Almost surely, 2^6911121 is an apocalyptic number.

It is an amenable number.

6911121 is a deficient number, since it is larger than the sum of its proper divisors (3620143).

6911121 is a wasteful number, since it uses less digits than its factorization.

6911121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329111.

The product of its digits is 108, while the sum is 21.

The square root of 6911121 is about 2628.9011012208. The cubic root of 6911121 is about 190.4800510934.

The spelling of 6911121 in words is "six million, nine hundred eleven thousand, one hundred twenty-one".