65783934 has 16 divisors (see below), whose sum is σ = 146186640. Its totient is φ = 21927960.

The previous prime is 65783929. The next prime is 65783941. The reversal of 65783934 is 43938756.

It is a self number, because there is not a number n which added to its sum of digits gives 65783934.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 609057 + ... + 609164.

It is an arithmetic number, because the mean of its divisors is an integer number (9136665).

Almost surely, 2^65783934 is an apocalyptic number.

65783934 is an abundant number, since it is smaller than the sum of its proper divisors (80402706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65783934 is a wasteful number, since it uses less digits than its factorization.

65783934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218232 (or 1218226 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 65783934 is about 8110.7295602800. The cubic root of 65783934 is about 403.6825226944.

It can be divided in two parts, 6578 and 3934, that multiplied together give a palindrome (25877852).

The spelling of 65783934 in words is "sixty-five million, seven hundred eighty-three thousand, nine hundred thirty-four".