385807403 has 2 divisors, whose sum is σ = 385807404. Its totient is φ = 385807402.

The previous prime is 385807393. The next prime is 385807421. The reversal of 385807403 is 304708583.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385807403 - 2²⁰ = 384758827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (385807453) 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, 192903701 + 192903702.

It is an arithmetic number, because the mean of its divisors is an integer number (192903702).

Almost surely, 2^385807403 is an apocalyptic number.

385807403 is a deficient number, since it is larger than the sum of its proper divisors (1).

385807403 is an equidigital number, since it uses as much as digits as its factorization.

385807403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 385807403 is about 19641.9806282360. The cubic root of 385807403 is about 727.9868238921.

The spelling of 385807403 in words is "three hundred eighty-five million, eight hundred seven thousand, four hundred three".