1193887 has 2 divisors, whose sum is σ = 1193888. Its totient is φ = 1193886.

The previous prime is 1193869. The next prime is 1193909. The reversal of 1193887 is 7883911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1193887 is a prime.

It is a Chen prime.

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 (1193837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 596943 + 596944.

It is an arithmetic number, because the mean of its divisors is an integer number (596944).

2^1193887 is an apocalyptic number.

1193887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1193887 is an equidigital number, since it uses as much as digits as its factorization.

1193887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The square root of 1193887 is about 1092.6513625123. The cubic root of 1193887 is about 106.0851043132.

It can be divided in two parts, 1193 and 887, that added together give a triangular number (2080 = T₆₄).

The spelling of 1193887 in words is "one million, one hundred ninety-three thousand, eight hundred eighty-seven".