402068663 has 2 divisors, whose sum is σ = 402068664. Its totient is φ = 402068662.

The previous prime is 402068647. The next prime is 402068701. The reversal of 402068663 is 366860204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402068663 - 2⁴ = 402068647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402068363) 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, 201034331 + 201034332.

It is an arithmetic number, because the mean of its divisors is an integer number (201034332).

Almost surely, 2^402068663 is an apocalyptic number.

402068663 is a deficient number, since it is larger than the sum of its proper divisors (1).

402068663 is an equidigital number, since it uses as much as digits as its factorization.

402068663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 402068663 is about 20051.6498822416. The cubic root of 402068663 is about 738.0742863116.

The spelling of 402068663 in words is "four hundred two million, sixty-eight thousand, six hundred sixty-three".