7285445 has 8 divisors (see below), whose sum is σ = 8774136. Its totient is φ = 5807296.

The previous prime is 7285441. The next prime is 7285463. The reversal of 7285445 is 5445827.

7285445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2829124 + 4456321 = 1682^2 + 2111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7285445 - 2² = 7285441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285441) 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 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (1096767).

Almost surely, 2^7285445 is an apocalyptic number.

It is an amenable number.

7285445 is a deficient number, since it is larger than the sum of its proper divisors (1488691).

7285445 is a wasteful number, since it uses less digits than its factorization.

7285445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271.

The product of its digits is 44800, while the sum is 35.

The square root of 7285445 is about 2699.1563496767. The cubic root of 7285445 is about 193.8587291209.

The spelling of 7285445 in words is "seven million, two hundred eighty-five thousand, four hundred forty-five".