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7487 is a prime number
BaseRepresentation
bin1110100111111
3101021022
41310333
5214422
654355
730554
oct16477
911238
107487
115697
1243bb
13353c
142a2b
152342
hex1d3f

7487 has 2 divisors, whose sum is σ = 7488. Its totient is φ = 7486.

The previous prime is 7481. The next prime is 7489. The reversal of 7487 is 7847.

7487 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 7487 - 212 = 3391 is a prime.

Together with 7489, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 7487.

It is not a weakly prime, because it can be changed into another prime (7481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743 + 3744.

It is an arithmetic number, because the mean of its divisors is an integer number (3744).

7487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487 is an equidigital number, since it uses as much as digits as its factorization.

7487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 26.

The square root of 7487 is about 86.5274522912. The cubic root of 7487 is about 19.5630220475.

It can be divided in two parts, 74 and 87, that added together give a palindrome (161).

The spelling of 7487 in words is "seven thousand, four hundred eighty-seven".