65933385 has 64 divisors (see below), whose sum is σ = 127180800. Its totient is φ = 28530432.

The previous prime is 65933383. The next prime is 65933407. The reversal of 65933385 is 58333956.

It is not a de Polignac number, because 65933385 - 2¹ = 65933383 is a prime.

It is a super-2 number, since 2×65933385² = 8694422515116450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65933383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179472 + ... + 179838.

It is an arithmetic number, because the mean of its divisors is an integer number (1987200).

Almost surely, 2^65933385 is an apocalyptic number.

It is an amenable number.

65933385 is a deficient number, since it is larger than the sum of its proper divisors (61247415).

65933385 is a wasteful number, since it uses less digits than its factorization.

65933385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 291600, while the sum is 42.

The square root of 65933385 is about 8119.9374997595. The cubic root of 65933385 is about 403.9879930588.

The spelling of 65933385 in words is "sixty-five million, nine hundred thirty-three thousand, three hundred eighty-five".