64793856 has 72 divisors (see below), whose sum is σ = 173658240. Its totient is φ = 21446656.

The previous prime is 64793831. The next prime is 64793879. The reversal of 64793856 is 65839746.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183376 + ... + 183728.

It is an arithmetic number, because the mean of its divisors is an integer number (2411920).

Almost surely, 2^64793856 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 64793856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86829120).

64793856 is an abundant number, since it is smaller than the sum of its proper divisors (108864384).

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

64793856 is a wasteful number, since it uses less digits than its factorization.

64793856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 597 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 64793856 is about 8049.4630876848. The cubic root of 64793856 is about 401.6470752158.

The spelling of 64793856 in words is "sixty-four million, seven hundred ninety-three thousand, eight hundred fifty-six".