7991465 has 8 divisors (see below), whose sum is σ = 10006848. Its totient is φ = 6115120.

The previous prime is 7991453. The next prime is 7991471. The reversal of 7991465 is 5641997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7991465 - 2⁸ = 7991209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34631 + ... + 34860.

It is an arithmetic number, because the mean of its divisors is an integer number (1250856).

Almost surely, 2^7991465 is an apocalyptic number.

It is an amenable number.

7991465 is a deficient number, since it is larger than the sum of its proper divisors (2015383).

7991465 is a wasteful number, since it uses less digits than its factorization.

7991465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69519.

The product of its digits is 68040, while the sum is 41.

The square root of 7991465 is about 2826.9179330147. The cubic root of 7991465 is about 199.9288496912.

The spelling of 7991465 in words is "seven million, nine hundred ninety-one thousand, four hundred sixty-five".