7968609 has 12 divisors (see below), whose sum is σ = 12556752. Its totient is φ = 4829400.

The previous prime is 7968593. The next prime is 7968617. The reversal of 7968609 is 9068697.

It is not a de Polignac number, because 7968609 - 2⁴ = 7968593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7968679) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40147 + ... + 40344.

It is an arithmetic number, because the mean of its divisors is an integer number (1046396).

Almost surely, 2^7968609 is an apocalyptic number.

It is an amenable number.

7968609 is a deficient number, since it is larger than the sum of its proper divisors (4588143).

7968609 is a wasteful number, since it uses less digits than its factorization.

7968609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80508 (or 80505 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 7968609 is about 2822.8724732088. The cubic root of 7968609 is about 199.7380654345.

The spelling of 7968609 in words is "seven million, nine hundred sixty-eight thousand, six hundred nine".