64788441 has 8 divisors (see below), whose sum is σ = 86473920. Its totient is φ = 43147632.

The previous prime is 64788421. The next prime is 64788457. The reversal of 64788441 is 14488746.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64788441 - 2¹⁰ = 64787417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64788393 and 64788402.

It is not an unprimeable number, because it can be changed into a prime (64788421) by changing a digit.

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, 7621 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (10809240).

Almost surely, 2^64788441 is an apocalyptic number.

It is an amenable number.

64788441 is a deficient number, since it is larger than the sum of its proper divisors (21685479).

64788441 is a wasteful number, since it uses less digits than its factorization.

64788441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22335.

The product of its digits is 172032, while the sum is 42.

The square root of 64788441 is about 8049.1267228191. The cubic root of 64788441 is about 401.6358859888.

The spelling of 64788441 in words is "sixty-four million, seven hundred eighty-eight thousand, four hundred forty-one".