7220285 has 8 divisors (see below), whose sum is σ = 9120480. Its totient is φ = 5472144.

The previous prime is 7220263. The next prime is 7220299. The reversal of 7220285 is 5820227.

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 7220285 - 2¹⁴ = 7203901 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 37907 + ... + 38096.

It is an arithmetic number, because the mean of its divisors is an integer number (1140060).

Almost surely, 2^7220285 is an apocalyptic number.

It is an amenable number.

7220285 is a deficient number, since it is larger than the sum of its proper divisors (1900195).

7220285 is a wasteful number, since it uses less digits than its factorization.

7220285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76027.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 7220285 is about 2687.0588009941. The cubic root of 7220285 is about 193.2790490348.

The spelling of 7220285 in words is "seven million, two hundred twenty thousand, two hundred eighty-five".