7287115 has 16 divisors (see below), whose sum is σ = 9745920. Its totient is φ = 5185120.

The previous prime is 7287107. The next prime is 7287131. The reversal of 7287115 is 5117827.

It is a happy number.

It is not a de Polignac number, because 7287115 - 2³ = 7287107 is a prime.

7287115 is a lucky 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 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 3994.

It is an arithmetic number, because the mean of its divisors is an integer number (609120).

Almost surely, 2^7287115 is an apocalyptic number.

7287115 is a deficient number, since it is larger than the sum of its proper divisors (2458805).

7287115 is a wasteful number, since it uses less digits than its factorization.

7287115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882.

The product of its digits is 3920, while the sum is 31.

The square root of 7287115 is about 2699.4656878723. The cubic root of 7287115 is about 193.8735403572.

The spelling of 7287115 in words is "seven million, two hundred eighty-seven thousand, one hundred fifteen".