385313737 has 2 divisors, whose sum is σ = 385313738. Its totient is φ = 385313736.

The previous prime is 385313729. The next prime is 385313771. The reversal of 385313737 is 737313583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344622096 + 40691641 = 18564^2 + 6379^2 .

It is a cyclic number.

It is not a de Polignac number, because 385313737 - 2³ = 385313729 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385313737.

It is not a weakly prime, because it can be changed into another prime (385313707) 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, 192656868 + 192656869.

It is an arithmetic number, because the mean of its divisors is an integer number (192656869).

Almost surely, 2^385313737 is an apocalyptic number.

It is an amenable number.

385313737 is a deficient number, since it is larger than the sum of its proper divisors (1).

385313737 is an equidigital number, since it uses as much as digits as its factorization.

385313737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 40.

The square root of 385313737 is about 19629.4100013220. The cubic root of 385313737 is about 727.6761889879.

The spelling of 385313737 in words is "three hundred eighty-five million, three hundred thirteen thousand, seven hundred thirty-seven".