65441984 has 14 divisors (see below), whose sum is σ = 129861564. Its totient is φ = 32720960.

The previous prime is 65441983. The next prime is 65441989. The reversal of 65441984 is 48914456.

It is not an unprimeable number, because it can be changed into a prime (65441983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511202 + ... + 511329.

It is an arithmetic number, because the mean of its divisors is an integer number (9275826).

Almost surely, 2^65441984 is an apocalyptic number.

65441984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65441984 is a deficient number, since it is larger than the sum of its proper divisors (64419580).

65441984 is a wasteful number, since it uses less digits than its factorization.

65441984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022543 (or 1022533 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 65441984 is about 8089.6219936410. The cubic root of 65441984 is about 402.9818495316.

The spelling of 65441984 in words is "sixty-five million, four hundred forty-one thousand, nine hundred eighty-four".