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1087 is a prime number

1087 has 2 divisors, whose sum is σ = 1088. Its totient is φ = 1086.

The previous prime is 1069. The next prime is 1091. The reversal of 1087 is 7801.

1087 is nontrivially palindromic in base 12.

1087 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1087 is a prime.

It is a Kynea number, being equal to (25 + 1)2 - 2.

1087 is an undulating number in base 12.

1087 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543 + 544.

It is an arithmetic number, because the mean of its divisors is an integer number (544).

21087 is an apocalyptic number.

1087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087 is an equidigital number, since it uses as much as digits as its factorization.

1087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1087 is about 32.9696830437. The cubic root of 1087 is about 10.2819743164.

Adding to 1087 its reverse (7801), we get a palindrome (8888).

The spelling of 1087 in words is "one thousand, eighty-seven".