1420706671 has 2 divisors, whose sum is σ = 1420706672. Its totient is φ = 1420706670.

The previous prime is 1420706597. The next prime is 1420706681. The reversal of 1420706671 is 1766070241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420706671 - 2⁷ = 1420706543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420706681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710353335 + 710353336.

It is an arithmetic number, because the mean of its divisors is an integer number (710353336).

Almost surely, 2^1420706671 is an apocalyptic number.

1420706671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420706671 is an equidigital number, since it uses as much as digits as its factorization.

1420706671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1420706671 is about 37692.2627471475. The cubic root of 1420706671 is about 1124.1772871549.

The spelling of 1420706671 in words is "one billion, four hundred twenty million, seven hundred six thousand, six hundred seventy-one".