65743984 has 10 divisors (see below), whose sum is σ = 127379000. Its totient is φ = 32871984.

The previous prime is 65743949. The next prime is 65743987. The reversal of 65743984 is 48934756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65743987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2054484 + ... + 2054515.

It is an arithmetic number, because the mean of its divisors is an integer number (12737900).

Almost surely, 2^65743984 is an apocalyptic number.

It is an amenable number.

65743984 is a deficient number, since it is larger than the sum of its proper divisors (61635016).

65743984 is a wasteful number, since it uses less digits than its factorization.

65743984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109007 (or 4109001 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 65743984 is about 8108.2663991756. The cubic root of 65743984 is about 403.6007885408.

The spelling of 65743984 in words is "sixty-five million, seven hundred forty-three thousand, nine hundred eighty-four".