7988965 has 4 divisors (see below), whose sum is σ = 9586764. Its totient is φ = 6391168.

The previous prime is 7988923. The next prime is 7988971. The reversal of 7988965 is 5698897.

7988965 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5698897 = 811 ⋅7027.

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 5536609 = 1566^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 7988965 - 2¹¹ = 7986917 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 798892 + ... + 798901.

It is an arithmetic number, because the mean of its divisors is an integer number (2396691).

Almost surely, 2^7988965 is an apocalyptic number.

It is an amenable number.

7988965 is a deficient number, since it is larger than the sum of its proper divisors (1597799).

7988965 is a wasteful number, since it uses less digits than its factorization.

7988965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597798.

The product of its digits is 1088640, while the sum is 52.

The square root of 7988965 is about 2826.4757207519. The cubic root of 7988965 is about 199.9079993526.

The spelling of 7988965 in words is "seven million, nine hundred eighty-eight thousand, nine hundred sixty-five".