1087799 has 2 divisors, whose sum is σ = 1087800. Its totient is φ = 1087798.

The previous prime is 1087789. The next prime is 1087811. The reversal of 1087799 is 9977801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087799 - 2⁸ = 1087543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543899 + 543900.

It is an arithmetic number, because the mean of its divisors is an integer number (543900).

2^1087799 is an apocalyptic number.

1087799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087799 is an equidigital number, since it uses as much as digits as its factorization.

1087799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 1087799 is about 1042.9760304053. The cubic root of 1087799 is about 102.8449295647.

The spelling of 1087799 in words is "one million, eighty-seven thousand, seven hundred ninety-nine".