1090687 has 8 divisors (see below), whose sum is σ = 1197504. Its totient is φ = 987168.

The previous prime is 1090681. The next prime is 1090697. The reversal of 1090687 is 7860901.

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

It is not a de Polignac number, because 1090687 - 2¹¹ = 1088639 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 (1090681) 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, 103 + ... + 1480.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

2^1090687 is an apocalyptic number.

1090687 is a deficient number, since it is larger than the sum of its proper divisors (106817).

1090687 is a wasteful number, since it uses less digits than its factorization.

1090687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1090687 is about 1044.3596123941. The cubic root of 1090687 is about 102.9358635497.

The spelling of 1090687 in words is "one million, ninety thousand, six hundred eighty-seven".