64516449 has 8 divisors (see below), whose sum is σ = 89762112. Its totient is φ = 41140880.

The previous prime is 64516447. The next prime is 64516453. The reversal of 64516449 is 94461546.

64516449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 64516449 - 2¹ = 64516447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64516447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467442 + ... + 467579.

It is an arithmetic number, because the mean of its divisors is an integer number (11220264).

Almost surely, 2^64516449 is an apocalyptic number.

64516449 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

64516449 is a deficient number, since it is larger than the sum of its proper divisors (25245663).

64516449 is a wasteful number, since it uses less digits than its factorization.

64516449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935047.

The product of its digits is 103680, while the sum is 39.

The square root of 64516449 is about 8032.2132068316. The cubic root of 64516449 is about 401.0730542291.

The spelling of 64516449 in words is "sixty-four million, five hundred sixteen thousand, four hundred forty-nine".