385848647 has 4 divisors (see below), whose sum is σ = 388079160. Its totient is φ = 383618136.

The previous prime is 385848629. The next prime is 385848679. The reversal of 385848647 is 746848583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746848583 = 13 ⋅57449891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385848647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385848347) 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 3 ways as a sum of consecutive naturals, for example, 1114997 + ... + 1115342.

It is an arithmetic number, because the mean of its divisors is an integer number (97019790).

Almost surely, 2^385848647 is an apocalyptic number.

385848647 is a deficient number, since it is larger than the sum of its proper divisors (2230513).

385848647 is a wasteful number, since it uses less digits than its factorization.

385848647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230512.

The product of its digits is 5160960, while the sum is 53.

The square root of 385848647 is about 19643.0304943000. The cubic root of 385848647 is about 728.0127643125.

The spelling of 385848647 in words is "three hundred eighty-five million, eight hundred forty-eight thousand, six hundred forty-seven".