64794816 has 140 divisors (see below), whose sum is σ = 199156320. Its totient is φ = 20805120.

The previous prime is 64794799. The next prime is 64794817. The reversal of 64794816 is 61849746.

It is not an unprimeable number, because it can be changed into a prime (64794817) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150121 + ... + 150551.

Almost surely, 2^64794816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64794816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99578160).

64794816 is an abundant number, since it is smaller than the sum of its proper divisors (134361504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64794816 is a wasteful number, since it uses less digits than its factorization.

64794816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 465 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 64794816 is about 8049.5227187703. The cubic root of 64794816 is about 401.6490588365.

The spelling of 64794816 in words is "sixty-four million, seven hundred ninety-four thousand, eight hundred sixteen".