1406771 has 2 divisors, whose sum is σ = 1406772. Its totient is φ = 1406770.

The previous prime is 1406707. The next prime is 1406773. The reversal of 1406771 is 1776041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1406771 - 2⁶ = 1406707 is a prime.

Together with 1406773, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1406771.

It is not a weakly prime, because it can be changed into another prime (1406773) by changing a digit.

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 as a sum of consecutive naturals, namely, 703385 + 703386.

It is an arithmetic number, because the mean of its divisors is an integer number (703386).

2^1406771 is an apocalyptic number.

1406771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406771 is an equidigital number, since it uses as much as digits as its factorization.

1406771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1406771 is about 1186.0737751084. The cubic root of 1406771 is about 112.0489528778.

The spelling of 1406771 in words is "one million, four hundred six thousand, seven hundred seventy-one".