7199009 has 2 divisors, whose sum is σ = 7199010. Its totient is φ = 7199008.

The previous prime is 7198999. The next prime is 7199011. The reversal of 7199009 is 9009917.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 2235025 = 2228^2 + 1495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7199009 is a prime.

Together with 7199011, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7199009.

It is not a weakly prime, because it can be changed into another prime (7199029) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3599504 + 3599505.

It is an arithmetic number, because the mean of its divisors is an integer number (3599505).

Almost surely, 2^7199009 is an apocalyptic number.

It is an amenable number.

7199009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7199009 is an equidigital number, since it uses as much as digits as its factorization.

7199009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 7199009 is about 2683.0969046980. The cubic root of 7199009 is about 193.0890172556.

The spelling of 7199009 in words is "seven million, one hundred ninety-nine thousand, nine".