65036823 has 4 divisors (see below), whose sum is σ = 86715768. Its totient is φ = 43357880.

The previous prime is 65036819. The next prime is 65036831. The reversal of 65036823 is 32863056.

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 65036823 - 2² = 65036819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65036813) 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, 10839468 + ... + 10839473.

It is an arithmetic number, because the mean of its divisors is an integer number (21678942).

Almost surely, 2^65036823 is an apocalyptic number.

65036823 is a deficient number, since it is larger than the sum of its proper divisors (21678945).

65036823 is a wasteful number, since it uses less digits than its factorization.

65036823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21678944.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 65036823 is about 8064.5410904775. The cubic root of 65036823 is about 402.1484872616.

Adding to 65036823 its reverse (32863056), we get a palindrome (97899879).

It can be divided in two parts, 650 and 36823, that added together give a palindrome (37473).

The spelling of 65036823 in words is "sixty-five million, thirty-six thousand, eight hundred twenty-three".