1406786 has 4 divisors (see below), whose sum is σ = 2110182. Its totient is φ = 703392.

The previous prime is 1406773. The next prime is 1406789. The reversal of 1406786 is 6876041.

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., 1221025 + 185761 = 1105^2 + 431^2 .

It is not an unprimeable number, because it can be changed into a prime (1406789) 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, 351695 + ... + 351698.

2^1406786 is an apocalyptic number.

1406786 is a deficient number, since it is larger than the sum of its proper divisors (703396).

1406786 is an equidigital number, since it uses as much as digits as its factorization.

1406786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703395.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1406786 is about 1186.0800984756. The cubic root of 1406786 is about 112.0493511251.

The spelling of 1406786 in words is "one million, four hundred six thousand, seven hundred eighty-six".