406965563 has 2 divisors, whose sum is σ = 406965564. Its totient is φ = 406965562.

The previous prime is 406965557. The next prime is 406965593. The reversal of 406965563 is 365569604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406965563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (406965593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203482781 + 203482782.

It is an arithmetic number, because the mean of its divisors is an integer number (203482782).

Almost surely, 2^406965563 is an apocalyptic number.

406965563 is a deficient number, since it is larger than the sum of its proper divisors (1).

406965563 is an equidigital number, since it uses as much as digits as its factorization.

406965563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The square root of 406965563 is about 20173.3874944195. The cubic root of 406965563 is about 741.0586035971.

The spelling of 406965563 in words is "four hundred six million, nine hundred sixty-five thousand, five hundred sixty-three".