4636385 has 8 divisors (see below), whose sum is σ = 5991720. Its totient is φ = 3423744.

The previous prime is 4636381. The next prime is 4636441. The reversal of 4636385 is 5836364.

It can be written as a sum of positive squares in 4 ways, for example, as 192721 + 4443664 = 439^2 + 2108^2 .

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 4636385 - 2² = 4636381 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4636381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35600 + ... + 35729.

It is an arithmetic number, because the mean of its divisors is an integer number (748965).

Almost surely, 2^4636385 is an apocalyptic number.

It is an amenable number.

4636385 is a deficient number, since it is larger than the sum of its proper divisors (1355335).

4636385 is a wasteful number, since it uses less digits than its factorization.

4636385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71347.

The product of its digits is 51840, while the sum is 35.

The square root of 4636385 is about 2153.2266485440. The cubic root of 4636385 is about 166.7476917144.

The spelling of 4636385 in words is "four million, six hundred thirty-six thousand, three hundred eighty-five".