385681579 has 2 divisors, whose sum is σ = 385681580. Its totient is φ = 385681578.

The previous prime is 385681561. The next prime is 385681609. The reversal of 385681579 is 975186583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385681579 - 2⁹ = 385681067 is a prime.

It is not a weakly prime, because it can be changed into another prime (385681519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192840789 + 192840790.

It is an arithmetic number, because the mean of its divisors is an integer number (192840790).

Almost surely, 2^385681579 is an apocalyptic number.

385681579 is a deficient number, since it is larger than the sum of its proper divisors (1).

385681579 is an equidigital number, since it uses as much as digits as its factorization.

385681579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The square root of 385681579 is about 19638.7774313983. Note that the first 3 decimals coincide. The cubic root of 385681579 is about 727.9076754422.

The spelling of 385681579 in words is "three hundred eighty-five million, six hundred eighty-one thousand, five hundred seventy-nine".