7279289 has 4 divisors (see below), whose sum is σ = 7314000. Its totient is φ = 7244580.

The previous prime is 7279273. The next prime is 7279301. The reversal of 7279289 is 9829727.

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: 9829727 = 443 ⋅22189.

It is a cyclic number.

It is not a de Polignac number, because 7279289 - 2⁴ = 7279273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7279229) 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 3 ways as a sum of consecutive naturals, for example, 17039 + ... + 17460.

It is an arithmetic number, because the mean of its divisors is an integer number (1828500).

Almost surely, 2^7279289 is an apocalyptic number.

It is an amenable number.

7279289 is a deficient number, since it is larger than the sum of its proper divisors (34711).

7279289 is a wasteful number, since it uses less digits than its factorization.

7279289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34710.

The product of its digits is 127008, while the sum is 44.

The square root of 7279289 is about 2698.0157523632. The cubic root of 7279289 is about 193.8041119756.

The spelling of 7279289 in words is "seven million, two hundred seventy-nine thousand, two hundred eighty-nine".