1000906 has 8 divisors (see below), whose sum is σ = 1553220. Its totient is φ = 483168.

The previous prime is 1000889. The next prime is 1000907. The reversal of 1000906 is 6090001.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 81225 = 959^2 + 285^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000906.

It is not an unprimeable number, because it can be changed into a prime (1000907) 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 3 ways as a sum of consecutive naturals, for example, 8571 + ... + 8686.

2^1000906 is an apocalyptic number.

1000906 is a deficient number, since it is larger than the sum of its proper divisors (552314).

1000906 is a wasteful number, since it uses less digits than its factorization.

1000906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1000906 is about 1000.4528974420. The cubic root of 1000906 is about 100.0301908842.

Adding to 1000906 its reverse (6090001), we get a palindrome (7090907).

The spelling of 1000906 in words is "one million, nine hundred six", and thus it is an aban number.