7285215 has 16 divisors (see below), whose sum is σ = 13321728. Its totient is φ = 3330336.

The previous prime is 7285199. The next prime is 7285219. The reversal of 7285215 is 5125827.

It is not a de Polignac number, because 7285215 - 2⁴ = 7285199 is a prime.

7285215 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34587 + ... + 34796.

It is an arithmetic number, because the mean of its divisors is an integer number (832608).

Almost surely, 2^7285215 is an apocalyptic number.

7285215 is a deficient number, since it is larger than the sum of its proper divisors (6036513).

7285215 is a wasteful number, since it uses less digits than its factorization.

7285215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69398.

The product of its digits is 5600, while the sum is 30.

The square root of 7285215 is about 2699.1137434351. The cubic root of 7285215 is about 193.8566890726.

The spelling of 7285215 in words is "seven million, two hundred eighty-five thousand, two hundred fifteen".