65286811 has 4 divisors (see below), whose sum is σ = 68125392. Its totient is φ = 62448232.

The previous prime is 65286803. The next prime is 65286821. The reversal of 65286811 is 11868256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65286811 - 2³ = 65286803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65286821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419256 + ... + 1419301.

It is an arithmetic number, because the mean of its divisors is an integer number (17031348).

Almost surely, 2^65286811 is an apocalyptic number.

65286811 is a deficient number, since it is larger than the sum of its proper divisors (2838581).

65286811 is a wasteful number, since it uses less digits than its factorization.

65286811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838580.

The product of its digits is 23040, while the sum is 37.

The square root of 65286811 is about 8080.0254331283. The cubic root of 65286811 is about 402.6630868241.

The spelling of 65286811 in words is "sixty-five million, two hundred eighty-six thousand, eight hundred eleven".