65783423 has 4 divisors (see below), whose sum is σ = 66163848. Its totient is φ = 65403000.

The previous prime is 65783383. The next prime is 65783429. The reversal of 65783423 is 32438756.

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 65783423 - 2⁸ = 65783167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65783429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189953 + ... + 190298.

It is an arithmetic number, because the mean of its divisors is an integer number (16540962).

Almost surely, 2^65783423 is an apocalyptic number.

65783423 is a deficient number, since it is larger than the sum of its proper divisors (380425).

65783423 is a wasteful number, since it uses less digits than its factorization.

65783423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380424.

The product of its digits is 120960, while the sum is 38.

The square root of 65783423 is about 8110.6980587370. The cubic root of 65783423 is about 403.6814774428.

It can be divided in two parts, 6578 and 3423, that added together give a palindrome (10001).

The spelling of 65783423 in words is "sixty-five million, seven hundred eighty-three thousand, four hundred twenty-three".