65043385 has 16 divisors (see below), whose sum is σ = 86548032. Its totient is φ = 46526400.

The previous prime is 65043383. The next prime is 65043397. The reversal of 65043385 is 58334056.

It is not a de Polignac number, because 65043385 - 2¹ = 65043383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65043385.

It is not an unprimeable number, because it can be changed into a prime (65043383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6339 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (5409252).

Almost surely, 2^65043385 is an apocalyptic number.

It is an amenable number.

65043385 is a deficient number, since it is larger than the sum of its proper divisors (21504647).

65043385 is a wasteful number, since it uses less digits than its factorization.

65043385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 65043385 is about 8064.9479229565. The cubic root of 65043385 is about 402.1620119568.

It can be divided in two parts, 6504 and 3385, that added together give a palindrome (9889).

The spelling of 65043385 in words is "sixty-five million, forty-three thousand, three hundred eighty-five".