1087811 has 2 divisors, whose sum is σ = 1087812. Its totient is φ = 1087810.

The previous prime is 1087799. The next prime is 1087817. The reversal of 1087811 is 1187801.

It is a strong prime.

It is an emirp because it is prime and its reverse (1187801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1087811 - 2⁶ = 1087747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1087817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543905 + 543906.

It is an arithmetic number, because the mean of its divisors is an integer number (543906).

2^1087811 is an apocalyptic number.

1087811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087811 is an equidigital number, since it uses as much as digits as its factorization.

1087811 is an evil number, because the sum of its binary digits is even.

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

The square root of 1087811 is about 1042.9817831583. The cubic root of 1087811 is about 102.8453077395.

The spelling of 1087811 in words is "one million, eighty-seven thousand, eight hundred eleven".