64287441 has 6 divisors (see below), whose sum is σ = 92859650. Its totient is φ = 42858288.

The previous prime is 64287439. The next prime is 64287449. The reversal of 64287441 is 14478246.

64287441 is a `hidden beast` number, since 642 + 8 + 7 + 4 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49999041 + 14288400 = 7071^2 + 3780^2 .

It is not a de Polignac number, because 64287441 - 2¹ = 64287439 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 64287396 and 64287405.

It is not an unprimeable number, because it can be changed into a prime (64287449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3571516 + ... + 3571533.

Almost surely, 2^64287441 is an apocalyptic number.

It is an amenable number.

64287441 is a deficient number, since it is larger than the sum of its proper divisors (28572209).

64287441 is a wasteful number, since it uses less digits than its factorization.

64287441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143055 (or 7143052 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 64287441 is about 8017.9449362040. The cubic root of 64287441 is about 400.5979411373.

The spelling of 64287441 in words is "sixty-four million, two hundred eighty-seven thousand, four hundred forty-one".