1120687 has 2 divisors, whose sum is σ = 1120688. Its totient is φ = 1120686.

The previous prime is 1120673. The next prime is 1120711. The reversal of 1120687 is 7860211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7860211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120687 - 2¹⁹ = 596399 is a prime.

1120687 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560343 + 560344.

It is an arithmetic number, because the mean of its divisors is an integer number (560344).

2^1120687 is an apocalyptic number.

1120687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120687 is an equidigital number, since it uses as much as digits as its factorization.

1120687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1120687 is about 1058.6250516590. The cubic root of 1120687 is about 103.8711112889.

Adding to 1120687 its reverse (7860211), we get a palindrome (8980898).

The spelling of 1120687 in words is "one million, one hundred twenty thousand, six hundred eighty-seven".