1422671 has 2 divisors, whose sum is σ = 1422672. Its totient is φ = 1422670.

The previous prime is 1422661. The next prime is 1422677. The reversal of 1422671 is 1762241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1422671 - 2¹⁰ = 1421647 is a prime.

It is equal to p₁₀₈₆₇₁ and since 1422671 and 108671 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422677) 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, 711335 + 711336.

It is an arithmetic number, because the mean of its divisors is an integer number (711336).

2^1422671 is an apocalyptic number.

1422671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422671 is an equidigital number, since it uses as much as digits as its factorization.

1422671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 1422671 is about 1192.7577289626. The cubic root of 1422671 is about 112.4695160204.

The spelling of 1422671 in words is "one million, four hundred twenty-two thousand, six hundred seventy-one".