65386811 has 24 divisors (see below), whose sum is σ = 80989920. Its totient is φ = 51528960.

The previous prime is 65386801. The next prime is 65386813. The reversal of 65386811 is 11868356.

It is a happy number.

It is not a de Polignac number, because 65386811 - 2¹⁴ = 65370427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65386813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599825 + ... + 599933.

It is an arithmetic number, because the mean of its divisors is an integer number (3374580).

Almost surely, 2^65386811 is an apocalyptic number.

65386811 is a deficient number, since it is larger than the sum of its proper divisors (15603109).

65386811 is a wasteful number, since it uses less digits than its factorization.

65386811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 204 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 65386811 is about 8086.2111646926. The cubic root of 65386811 is about 402.8685686913.

The spelling of 65386811 in words is "sixty-five million, three hundred eighty-six thousand, eight hundred eleven".