385803427 has 2 divisors, whose sum is σ = 385803428. Its totient is φ = 385803426.

The previous prime is 385803391. The next prime is 385803437. The reversal of 385803427 is 724308583.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385803427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385803427.

It is not a weakly prime, because it can be changed into another prime (385803437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192901713 + 192901714.

It is an arithmetic number, because the mean of its divisors is an integer number (192901714).

Almost surely, 2^385803427 is an apocalyptic number.

385803427 is a deficient number, since it is larger than the sum of its proper divisors (1).

385803427 is an equidigital number, since it uses as much as digits as its factorization.

385803427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 385803427 is about 19641.8794161862. The cubic root of 385803427 is about 727.9843230885.

The spelling of 385803427 in words is "three hundred eighty-five million, eight hundred three thousand, four hundred twenty-seven".