385534663 has 2 divisors, whose sum is σ = 385534664. Its totient is φ = 385534662.

The previous prime is 385534621. The next prime is 385534679. The reversal of 385534663 is 366435583.

It is a strong prime.

It is an emirp because it is prime and its reverse (366435583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385534663 - 2⁹ = 385534151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385534063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192767331 + 192767332.

It is an arithmetic number, because the mean of its divisors is an integer number (192767332).

Almost surely, 2^385534663 is an apocalyptic number.

385534663 is a deficient number, since it is larger than the sum of its proper divisors (1).

385534663 is an equidigital number, since it uses as much as digits as its factorization.

385534663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 43.

The square root of 385534663 is about 19635.0366182495. The cubic root of 385534663 is about 727.8152374730.

The spelling of 385534663 in words is "three hundred eighty-five million, five hundred thirty-four thousand, six hundred sixty-three".