7001109 has 6 divisors (see below), whose sum is σ = 10112726. Its totient is φ = 4667400.

The previous prime is 7001107. The next prime is 7001123. The reversal of 7001109 is 9011007.

It can be written as a sum of positive squares in only one way, i.e., 5904900 + 1096209 = 2430^2 + 1047^2 .

It is not a de Polignac number, because 7001109 - 2¹ = 7001107 is a prime.

It is a Duffinian number.

7001109 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7001091 and 7001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001107) 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 5 ways as a sum of consecutive naturals, for example, 388942 + ... + 388959.

Almost surely, 2^7001109 is an apocalyptic number.

It is an amenable number.

7001109 is a deficient number, since it is larger than the sum of its proper divisors (3111617).

7001109 is a wasteful number, since it uses less digits than its factorization.

7001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777907 (or 777904 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 7001109 is about 2645.9608840646. The cubic root of 7001109 is about 191.3032198423.

The spelling of 7001109 in words is "seven million, one thousand, one hundred nine".