7282889 has 4 divisors (see below), whose sum is σ = 7420356. Its totient is φ = 7145424.

The previous prime is 7282883. The next prime is 7282903. The reversal of 7282889 is 9882827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9882827 = 89 ⋅111043.

It can be written as a sum of positive squares in 2 ways, for example, as 4443664 + 2839225 = 2108^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 7282889 - 2¹² = 7278793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7282883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68654 + ... + 68759.

It is an arithmetic number, because the mean of its divisors is an integer number (1855089).

Almost surely, 2^7282889 is an apocalyptic number.

It is an amenable number.

7282889 is a deficient number, since it is larger than the sum of its proper divisors (137467).

7282889 is a wasteful number, since it uses less digits than its factorization.

7282889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137466.

The product of its digits is 129024, while the sum is 44.

The square root of 7282889 is about 2698.6828268620. The cubic root of 7282889 is about 193.8360555633.

The spelling of 7282889 in words is "seven million, two hundred eighty-two thousand, eight hundred eighty-nine".