7991195 has 4 divisors (see below), whose sum is σ = 9589440. Its totient is φ = 6392952.

The previous prime is 7991177. The next prime is 7991209. The reversal of 7991195 is 5911997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7991195 - 2¹² = 7987099 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799115 + ... + 799124.

It is an arithmetic number, because the mean of its divisors is an integer number (2397360).

Almost surely, 2^7991195 is an apocalyptic number.

7991195 is a deficient number, since it is larger than the sum of its proper divisors (1598245).

7991195 is a wasteful number, since it uses less digits than its factorization.

7991195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598244.

The product of its digits is 25515, while the sum is 41.

The square root of 7991195 is about 2826.8701774224. The cubic root of 7991195 is about 199.9265980641.

The spelling of 7991195 in words is "seven million, nine hundred ninety-one thousand, one hundred ninety-five".