65793728 has 168 divisors, whose sum is σ = 178490880. Its totient is φ = 23362560.

The previous prime is 65793727. The next prime is 65793737. The reversal of 65793728 is 82739756.

Its product of digits (635040) is a multiple of the sum of its prime divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65793727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 832793 + ... + 832871.

Almost surely, 2^65793728 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 65793728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89245440).

65793728 is an abundant number, since it is smaller than the sum of its proper divisors (112697152).

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

65793728 is a wasteful number, since it uses less digits than its factorization.

65793728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 112 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 65793728 is about 8111.3333059368. Note that the first 4 decimals coincide. The cubic root of 65793728 is about 403.7025552981.

The spelling of 65793728 in words is "sixty-five million, seven hundred ninety-three thousand, seven hundred twenty-eight".