7256287 has 2 divisors, whose sum is σ = 7256288. Its totient is φ = 7256286.

The previous prime is 7256261. The next prime is 7256311. The reversal of 7256287 is 7826527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7256287 - 2¹⁵ = 7223519 is a prime.

7256287 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7256257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628143 + 3628144.

It is an arithmetic number, because the mean of its divisors is an integer number (3628144).

Almost surely, 2^7256287 is an apocalyptic number.

7256287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7256287 is an equidigital number, since it uses as much as digits as its factorization.

7256287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 7256287 is about 2693.7496171693. The cubic root of 7256287 is about 193.5997611584.

The spelling of 7256287 in words is "seven million, two hundred fifty-six thousand, two hundred eighty-seven".