1420647707 has 2 divisors, whose sum is σ = 1420647708. Its totient is φ = 1420647706.

The previous prime is 1420647673. The next prime is 1420647731. The reversal of 1420647707 is 7077460241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420647707 - 2⁶ = 1420647643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420647797) 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, 710323853 + 710323854.

It is an arithmetic number, because the mean of its divisors is an integer number (710323854).

Almost surely, 2^1420647707 is an apocalyptic number.

1420647707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420647707 is an equidigital number, since it uses as much as digits as its factorization.

1420647707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 1420647707 is about 37691.4805625887. The cubic root of 1420647707 is about 1124.1617345880.

The spelling of 1420647707 in words is "one billion, four hundred twenty million, six hundred forty-seven thousand, seven hundred seven".