7210285 has 4 divisors (see below), whose sum is σ = 8652348. Its totient is φ = 5768224.

The previous prime is 7210277. The next prime is 7210297. The reversal of 7210285 is 5820127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5820127 = 23 ⋅253049.

It can be written as a sum of positive squares in 2 ways, for example, as 2937796 + 4272489 = 1714^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 7210285 - 2³ = 7210277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 721024 + ... + 721033.

It is an arithmetic number, because the mean of its divisors is an integer number (2163087).

Almost surely, 2^7210285 is an apocalyptic number.

It is an amenable number.

7210285 is a deficient number, since it is larger than the sum of its proper divisors (1442063).

7210285 is a wasteful number, since it uses less digits than its factorization.

7210285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442062.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7210285 is about 2685.1973856683. The cubic root of 7210285 is about 193.1897781600.

The spelling of 7210285 in words is "seven million, two hundred ten thousand, two hundred eighty-five".