385537663 has 8 divisors (see below), whose sum is σ = 449989632. Its totient is φ = 323429496.

The previous prime is 385537657. The next prime is 385537693. The reversal of 385537663 is 366735583.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385537663 - 2¹⁷ = 385406591 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 (385537643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585595 + ... + 586252.

It is an arithmetic number, because the mean of its divisors is an integer number (56248704).

Almost surely, 2^385537663 is an apocalyptic number.

385537663 is a deficient number, since it is larger than the sum of its proper divisors (64451969).

385537663 is a wasteful number, since it uses less digits than its factorization.

385537663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171901.

The product of its digits is 1360800, while the sum is 46.

The square root of 385537663 is about 19635.1130121525. The cubic root of 385537663 is about 727.8171252756.

The spelling of 385537663 in words is "three hundred eighty-five million, five hundred thirty-seven thousand, six hundred sixty-three".