385868737 has 16 divisors (see below), whose sum is σ = 417308112. Its totient is φ = 355461120.

The previous prime is 385868711. The next prime is 385868789. The reversal of 385868737 is 737868583.

It can be written as a sum of positive squares in 8 ways, for example, as 80353296 + 305515441 = 8964^2 + 17479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385868737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385868237) 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 in 15 ways as a sum of consecutive naturals, for example, 240823 + ... + 242419.

It is an arithmetic number, because the mean of its divisors is an integer number (26081757).

Almost surely, 2^385868737 is an apocalyptic number.

It is an amenable number.

385868737 is a deficient number, since it is larger than the sum of its proper divisors (31439375).

385868737 is a wasteful number, since it uses less digits than its factorization.

385868737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908.

The product of its digits is 6773760, while the sum is 55.

The square root of 385868737 is about 19643.5418649489. The cubic root of 385868737 is about 728.0253992517.

The spelling of 385868737 in words is "three hundred eighty-five million, eight hundred sixty-eight thousand, seven hundred thirty-seven".