65909385 has 48 divisors (see below), whose sum is σ = 121268160. Its totient is φ = 33022080.

The previous prime is 65909383. The next prime is 65909399. The reversal of 65909385 is 58390956.

It is not a de Polignac number, because 65909385 - 2¹ = 65909383 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65909385.

It is not an unprimeable number, because it can be changed into a prime (65909383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133990 + ... + 134480.

It is an arithmetic number, because the mean of its divisors is an integer number (2526420).

Almost surely, 2^65909385 is an apocalyptic number.

It is an amenable number.

65909385 is a deficient number, since it is larger than the sum of its proper divisors (55358775).

65909385 is a wasteful number, since it uses less digits than its factorization.

65909385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 65909385 is about 8118.4595213624. The cubic root of 65909385 is about 403.9389693940.

The spelling of 65909385 in words is "sixty-five million, nine hundred nine thousand, three hundred eighty-five".