385778543 has 2 divisors, whose sum is σ = 385778544. Its totient is φ = 385778542.

The previous prime is 385778509. The next prime is 385778551. The reversal of 385778543 is 345877583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385778543 - 2⁶ = 385778479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385778491 and 385778500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385748543) 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, 192889271 + 192889272.

It is an arithmetic number, because the mean of its divisors is an integer number (192889272).

Almost surely, 2^385778543 is an apocalyptic number.

385778543 is a deficient number, since it is larger than the sum of its proper divisors (1).

385778543 is an equidigital number, since it uses as much as digits as its factorization.

385778543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 50.

The square root of 385778543 is about 19641.2459635330. The cubic root of 385778543 is about 727.9686712910.

The spelling of 385778543 in words is "three hundred eighty-five million, seven hundred seventy-eight thousand, five hundred forty-three".