1012786 has 4 divisors (see below), whose sum is σ = 1519182. Its totient is φ = 506392.

The previous prime is 1012771. The next prime is 1012789. The reversal of 1012786 is 6872101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 837225 + 175561 = 915^2 + 419^2 .

It is an Ulam number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1012786.

It is not an unprimeable number, because it can be changed into a prime (1012789) 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 as a sum of consecutive naturals, namely, 253195 + ... + 253198.

2^1012786 is an apocalyptic number.

1012786 is a deficient number, since it is larger than the sum of its proper divisors (506396).

1012786 is an equidigital number, since it uses as much as digits as its factorization.

1012786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506395.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1012786 is about 1006.3726943831. The cubic root of 1012786 is about 100.4243963296.

Adding to 1012786 its reverse (6872101), we get a palindrome (7884887).

The spelling of 1012786 in words is "one million, twelve thousand, seven hundred eighty-six".