1968487 has 2 divisors, whose sum is σ = 1968488. Its totient is φ = 1968486.

The previous prime is 1968467. The next prime is 1968521. The reversal of 1968487 is 7848691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1968487 - 2⁷ = 1968359 is a prime.

1968487 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1968427) 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, 984243 + 984244.

It is an arithmetic number, because the mean of its divisors is an integer number (984244).

2^1968487 is an apocalyptic number.

1968487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968487 is an equidigital number, since it uses as much as digits as its factorization.

1968487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 1968487 is about 1403.0277973013. The cubic root of 1968487 is about 125.3268671844.

The spelling of 1968487 in words is "one million, nine hundred sixty-eight thousand, four hundred eighty-seven".