7285489 has 4 divisors (see below), whose sum is σ = 7293924. Its totient is φ = 7277056.

The previous prime is 7285483. The next prime is 7285501. The reversal of 7285489 is 9845827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9845827 = 61 ⋅161407.

It can be written as a sum of positive squares in 2 ways, for example, as 4804864 + 2480625 = 2192^2 + 1575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7285489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7285483) 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, 2752 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (1823481).

Almost surely, 2^7285489 is an apocalyptic number.

It is an amenable number.

7285489 is a deficient number, since it is larger than the sum of its proper divisors (8435).

7285489 is an equidigital number, since it uses as much as digits as its factorization.

7285489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434.

The product of its digits is 161280, while the sum is 43.

The square root of 7285489 is about 2699.1645003593. The cubic root of 7285489 is about 193.8591193860.

The spelling of 7285489 in words is "seven million, two hundred eighty-five thousand, four hundred eighty-nine".