426713663 has 2 divisors, whose sum is σ = 426713664. Its totient is φ = 426713662.

The previous prime is 426713633. The next prime is 426713671. The reversal of 426713663 is 366317624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426713663 - 2⁸ = 426713407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426713633) 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, 213356831 + 213356832.

It is an arithmetic number, because the mean of its divisors is an integer number (213356832).

Almost surely, 2^426713663 is an apocalyptic number.

426713663 is a deficient number, since it is larger than the sum of its proper divisors (1).

426713663 is an equidigital number, since it uses as much as digits as its factorization.

426713663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 38.

The square root of 426713663 is about 20657.0487485507. The cubic root of 426713663 is about 752.8564628668.

The spelling of 426713663 in words is "four hundred twenty-six million, seven hundred thirteen thousand, six hundred sixty-three".