64416889 has 16 divisors (see below), whose sum is σ = 68257728. Its totient is φ = 60720192.

The previous prime is 64416883. The next prime is 64416899. The reversal of 64416889 is 98861446.

64416889 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 64416889 - 2¹³ = 64408697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64416883) 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 15 ways as a sum of consecutive naturals, for example, 209674 + ... + 209980.

It is an arithmetic number, because the mean of its divisors is an integer number (4266108).

Almost surely, 2^64416889 is an apocalyptic number.

It is an amenable number.

64416889 is a deficient number, since it is larger than the sum of its proper divisors (3840839).

64416889 is a wasteful number, since it uses less digits than its factorization.

64416889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 331776, while the sum is 46.

The square root of 64416889 is about 8026.0132693636. The cubic root of 64416889 is about 400.8666397329.

The spelling of 64416889 in words is "sixty-four million, four hundred sixteen thousand, eight hundred eighty-nine".