1011887 has 4 divisors (see below), whose sum is σ = 1017720. Its totient is φ = 1006056.

The previous prime is 1011827. The next prime is 1011889. The reversal of 1011887 is 7881101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7881101 = 47 ⋅167683.

It is a cyclic number.

It is not a de Polignac number, because 1011887 - 2⁸ = 1011631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011889) 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 in 3 ways as a sum of consecutive naturals, for example, 2648 + ... + 3005.

It is an arithmetic number, because the mean of its divisors is an integer number (254430).

2^1011887 is an apocalyptic number.

1011887 is a deficient number, since it is larger than the sum of its proper divisors (5833).

1011887 is an equidigital number, since it uses as much as digits as its factorization.

1011887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 1011887 is about 1005.9259416080. The cubic root of 1011887 is about 100.3946736115.

Adding to 1011887 its reverse (7881101), we get a palindrome (8892988).

The spelling of 1011887 in words is "one million, eleven thousand, eight hundred eighty-seven".