1087906 has 8 divisors (see below), whose sum is σ = 1688220. Its totient is φ = 525168.

The previous prime is 1087903. The next prime is 1087907. The reversal of 1087906 is 6097801.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 4225 = 1041^2 + 65^2 .

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

It is a plaindrome in base 12.

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, 9321 + ... + 9436.

2^1087906 is an apocalyptic number.

1087906 is a deficient number, since it is larger than the sum of its proper divisors (600314).

1087906 is a wasteful number, since it uses less digits than its factorization.

1087906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18788.

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

The square root of 1087906 is about 1043.0273246660. The cubic root of 1087906 is about 102.8483015255.

The spelling of 1087906 in words is "one million, eighty-seven thousand, nine hundred six".