2006402647 has 2 divisors, whose sum is σ = 2006402648. Its totient is φ = 2006402646.

The previous prime is 2006402633. The next prime is 2006402659. The reversal of 2006402647 is 7462046002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2006402647 - 2¹⁹ = 2005878359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006402627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003201323 + 1003201324.

It is an arithmetic number, because the mean of its divisors is an integer number (1003201324).

Almost surely, 2^2006402647 is an apocalyptic number.

2006402647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006402647 is an equidigital number, since it uses as much as digits as its factorization.

2006402647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 2006402647 is about 44792.8861204544. The cubic root of 2006402647 is about 1261.2640893666.

Adding to 2006402647 its reverse (7462046002), we get a palindrome (9468448649).

The spelling of 2006402647 in words is "two billion, six million, four hundred two thousand, six hundred forty-seven".