385641747 has 6 divisors (see below), whose sum is σ = 557038092. Its totient is φ = 257094492.

The previous prime is 385641733. The next prime is 385641761. The reversal of 385641747 is 747146583.

385641747 is a `hidden beast` number, since 38 + 564 + 17 + 47 = 666.

It is an interprime number because it is at equal distance from previous prime (385641733) and next prime (385641761).

It is not a de Polignac number, because 385641747 - 2¹⁴ = 385625363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385641247) 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 5 ways as a sum of consecutive naturals, for example, 21424533 + ... + 21424550.

It is an arithmetic number, because the mean of its divisors is an integer number (92839682).

Almost surely, 2^385641747 is an apocalyptic number.

385641747 is a deficient number, since it is larger than the sum of its proper divisors (171396345).

385641747 is a wasteful number, since it uses less digits than its factorization.

385641747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42849089 (or 42849086 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 385641747 is about 19637.7632891325. The cubic root of 385641747 is about 727.8826158955.

The spelling of 385641747 in words is "three hundred eighty-five million, six hundred forty-one thousand, seven hundred forty-seven".