64768896 has 80 divisors (see below), whose sum is σ = 192782040. Its totient is φ = 21586176.

The previous prime is 64768877. The next prime is 64768901. The reversal of 64768896 is 69886746.

64768896 is a `hidden beast` number, since 6 + 476 + 88 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7245 + ... + 13491.

Almost surely, 2^64768896 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 64768896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96391020).

64768896 is an abundant number, since it is smaller than the sum of its proper divisors (128013144).

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

64768896 is an equidigital number, since it uses as much as digits as its factorization.

64768896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6273 (or 6252 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 64768896 is about 8047.9125243755. The cubic root of 64768896 is about 401.5954942009.

The spelling of 64768896 in words is "sixty-four million, seven hundred sixty-eight thousand, eight hundred ninety-six".