1087913 has 4 divisors (see below), whose sum is σ = 1091028. Its totient is φ = 1084800.

The previous prime is 1087907. The next prime is 1087937. The reversal of 1087913 is 3197801.

1087913 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3197801 = 29 ⋅110269.

It can be written as a sum of positive squares in 2 ways, for example, as 1075369 + 12544 = 1037^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087913 - 2⁴ = 1087897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (272757).

2^1087913 is an apocalyptic number.

It is an amenable number.

1087913 is a deficient number, since it is larger than the sum of its proper divisors (3115).

1087913 is an equidigital number, since it uses as much as digits as its factorization.

1087913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1087913 is about 1043.0306802774. The cubic root of 1087913 is about 102.8485221133.

The spelling of 1087913 in words is "one million, eighty-seven thousand, nine hundred thirteen".