1006812 has 18 divisors (see below), whose sum is σ = 2545088. Its totient is φ = 335592.

The previous prime is 1006799. The next prime is 1006847. The reversal of 1006812 is 2186001.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13948 + ... + 14019.

2^1006812 is an apocalyptic number.

1006812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1006812 is an abundant number, since it is smaller than the sum of its proper divisors (1538276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1006812 is a wasteful number, since it uses less digits than its factorization.

1006812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27977 (or 27972 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1006812 is about 1003.4002192545. The cubic root of 1006812 is about 100.2265530164.

The spelling of 1006812 in words is "one million, six thousand, eight hundred twelve".