7286505 has 16 divisors (see below), whose sum is σ = 11739264. Its totient is φ = 3859200.

The previous prime is 7286501. The next prime is 7286537. The reversal of 7286505 is 5056827.

It is a happy number.

It is not a de Polignac number, because 7286505 - 2² = 7286501 is a prime.

It is a Curzon number.

7286505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7286501) 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, 657 + ... + 3873.

It is an arithmetic number, because the mean of its divisors is an integer number (733704).

Almost surely, 2^7286505 is an apocalyptic number.

It is an amenable number.

7286505 is a deficient number, since it is larger than the sum of its proper divisors (4452759).

7286505 is a wasteful number, since it uses less digits than its factorization.

7286505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 7286505 is about 2699.3527001857. The cubic root of 7286505 is about 193.8681305272.

The spelling of 7286505 in words is "seven million, two hundred eighty-six thousand, five hundred five".