1206587 has 2 divisors, whose sum is σ = 1206588. Its totient is φ = 1206586.

The previous prime is 1206581. The next prime is 1206619. The reversal of 1206587 is 7856021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1206587 - 2¹⁰ = 1205563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1206581) 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, 603293 + 603294.

It is an arithmetic number, because the mean of its divisors is an integer number (603294).

2^1206587 is an apocalyptic number.

1206587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206587 is an equidigital number, since it uses as much as digits as its factorization.

1206587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1206587 is about 1098.4475408503. The cubic root of 1206587 is about 106.4599392334.

The spelling of 1206587 in words is "one million, two hundred six thousand, five hundred eighty-seven".