Search a number
-
+
8287493 is a prime number
BaseRepresentation
bin11111100111010100000101
3120121001022012
4133213110011
54110144433
6453344005
7130304534
oct37472405
916531265
108287493
114750575
122938005
131942256
14115a31b
15ada848
hex7e7505

8287493 has 2 divisors, whose sum is σ = 8287494. Its totient is φ = 8287492.

The previous prime is 8287481. The next prime is 8287507. The reversal of 8287493 is 3947828.

8287493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4418404 + 3869089 = 2102^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 8287493 - 212 = 8283397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8287493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8287403) 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, 4143746 + 4143747.

It is an arithmetic number, because the mean of its divisors is an integer number (4143747).

Almost surely, 28287493 is an apocalyptic number.

It is an amenable number.

8287493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8287493 is an equidigital number, since it uses as much as digits as its factorization.

8287493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 8287493 is about 2878.8006183131. The cubic root of 8287493 is about 202.3676358991.

The spelling of 8287493 in words is "eight million, two hundred eighty-seven thousand, four hundred ninety-three".