1087869 has 8 divisors (see below), whose sum is σ = 1464480. Its totient is φ = 718256.

The previous prime is 1087861. The next prime is 1087873. The reversal of 1087869 is 9687801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087869 - 2³ = 1087861 is a prime.

It is a super-2 number, since 2×1087869² = 2366917922322, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (183060).

2^1087869 is an apocalyptic number.

It is an amenable number.

1087869 is a deficient number, since it is larger than the sum of its proper divisors (376611).

1087869 is a wasteful number, since it uses less digits than its factorization.

1087869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1087869 is about 1043.0095876836. The cubic root of 1087869 is about 102.8471355453.

The spelling of 1087869 in words is "one million, eighty-seven thousand, eight hundred sixty-nine".