8120995 has 4 divisors (see below), whose sum is σ = 9745200. Its totient is φ = 6496792.

The previous prime is 8120953. The next prime is 8121011. The reversal of 8120995 is 5990218.

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 8120995 - 2⁷ = 8120867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8120995.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812095 + ... + 812104.

It is an arithmetic number, because the mean of its divisors is an integer number (2436300).

Almost surely, 2^8120995 is an apocalyptic number.

8120995 is a deficient number, since it is larger than the sum of its proper divisors (1624205).

8120995 is a wasteful number, since it uses less digits than its factorization.

8120995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624204.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 8120995 is about 2849.7359526805. The cubic root of 8120995 is about 201.0032506920.

The spelling of 8120995 in words is "eight million, one hundred twenty thousand, nine hundred ninety-five".