64449683 has 2 divisors, whose sum is σ = 64449684. Its totient is φ = 64449682.

The previous prime is 64449673. The next prime is 64449719. The reversal of 64449683 is 38694446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64449683 - 2⁴ = 64449667 is a prime.

It is not a weakly prime, because it can be changed into another prime (64449673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32224841 + 32224842.

It is an arithmetic number, because the mean of its divisors is an integer number (32224842).

Almost surely, 2^64449683 is an apocalyptic number.

64449683 is a deficient number, since it is larger than the sum of its proper divisors (1).

64449683 is an equidigital number, since it uses as much as digits as its factorization.

64449683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 44.

The square root of 64449683 is about 8028.0559913344. The cubic root of 64449683 is about 400.9346539373.

The spelling of 64449683 in words is "sixty-four million, four hundred forty-nine thousand, six hundred eighty-three".