385803793 has 4 divisors (see below), whose sum is σ = 388261300. Its totient is φ = 383346288.

The previous prime is 385803787. The next prime is 385803799. The reversal of 385803793 is 397308583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397308583 = 7 ⋅56758369.

It is an interprime number because it is at equal distance from previous prime (385803787) and next prime (385803799).

It can be written as a sum of positive squares in 2 ways, for example, as 224310529 + 161493264 = 14977^2 + 12708^2 .

It is a cyclic number.

It is not a de Polignac number, because 385803793 - 2¹³ = 385795601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385803799) 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 in 3 ways as a sum of consecutive naturals, for example, 1228518 + ... + 1228831.

It is an arithmetic number, because the mean of its divisors is an integer number (97065325).

Almost surely, 2^385803793 is an apocalyptic number.

It is an amenable number.

385803793 is a deficient number, since it is larger than the sum of its proper divisors (2457507).

385803793 is a wasteful number, since it uses less digits than its factorization.

385803793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457506.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 385803793 is about 19641.8887330114. Note that the first 3 decimals coincide. The cubic root of 385803793 is about 727.9845532940.

The spelling of 385803793 in words is "three hundred eighty-five million, eight hundred three thousand, seven hundred ninety-three".