6991101 has 12 divisors (see below), whose sum is σ = 10875228. Its totient is φ = 4302144.

The previous prime is 6991099. The next prime is 6991111. The reversal of 6991101 is 1011996.

It can be written as a sum of positive squares in 2 ways, for example, as 2643876 + 4347225 = 1626^2 + 2085^2 .

It is not a de Polignac number, because 6991101 - 2¹ = 6991099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6991111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29760 + ... + 29993.

It is an arithmetic number, because the mean of its divisors is an integer number (906269).

Almost surely, 2^6991101 is an apocalyptic number.

It is an amenable number.

6991101 is a deficient number, since it is larger than the sum of its proper divisors (3884127).

6991101 is a wasteful number, since it uses less digits than its factorization.

6991101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59772 (or 59769 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 6991101 is about 2644.0690233048. The cubic root of 6991101 is about 191.2120211655.

The spelling of 6991101 in words is "six million, nine hundred ninety-one thousand, one hundred one".