7668289 has 4 divisors (see below), whose sum is σ = 7798320. Its totient is φ = 7538260.

The previous prime is 7668281. The next prime is 7668299. The reversal of 7668289 is 9828667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9828667 = 433 ⋅22699.

It is a cyclic number.

It is not a de Polignac number, because 7668289 - 2³ = 7668281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64927 + ... + 65044.

It is an arithmetic number, because the mean of its divisors is an integer number (1949580).

Almost surely, 2^7668289 is an apocalyptic number.

It is an amenable number.

7668289 is a deficient number, since it is larger than the sum of its proper divisors (130031).

7668289 is a wasteful number, since it uses less digits than its factorization.

7668289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130030.

The product of its digits is 290304, while the sum is 46.

The square root of 7668289 is about 2769.1675644496. The cubic root of 7668289 is about 197.1966308687.

The spelling of 7668289 in words is "seven million, six hundred sixty-eight thousand, two hundred eighty-nine".