7280291 has 2 divisors, whose sum is σ = 7280292. Its totient is φ = 7280290.

The previous prime is 7280279. The next prime is 7280293. The reversal of 7280291 is 1920827.

It is a happy number.

7280291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7280291 - 2¹⁰ = 7279267 is a prime.

Together with 7280293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7280293) by changing a digit.

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 as a sum of consecutive naturals, namely, 3640145 + 3640146.

It is an arithmetic number, because the mean of its divisors is an integer number (3640146).

Almost surely, 2^7280291 is an apocalyptic number.

7280291 is a deficient number, since it is larger than the sum of its proper divisors (1).

7280291 is an equidigital number, since it uses as much as digits as its factorization.

7280291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 7280291 is about 2698.2014379953. The cubic root of 7280291 is about 193.8130039984.

The spelling of 7280291 in words is "seven million, two hundred eighty thousand, two hundred ninety-one".