385828633 has 2 divisors, whose sum is σ = 385828634. Its totient is φ = 385828632.

The previous prime is 385828631. The next prime is 385828691. The reversal of 385828633 is 336828583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368755209 + 17073424 = 19203^2 + 4132^2 .

It is a cyclic number.

It is not a de Polignac number, because 385828633 - 2¹ = 385828631 is a prime.

Together with 385828631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (385828631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192914316 + 192914317.

It is an arithmetic number, because the mean of its divisors is an integer number (192914317).

Almost surely, 2^385828633 is an apocalyptic number.

It is an amenable number.

385828633 is a deficient number, since it is larger than the sum of its proper divisors (1).

385828633 is an equidigital number, since it uses as much as digits as its factorization.

385828633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 46.

The square root of 385828633 is about 19642.5210449168. The cubic root of 385828633 is about 728.0001767349. Note that the first 3 decimals are identical.

Subtracting from 385828633 its reverse (336828583), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 385828633 in words is "three hundred eighty-five million, eight hundred twenty-eight thousand, six hundred thirty-three".