65494728 has 96 divisors (see below), whose sum is σ = 192628800. Its totient is φ = 19983744.

The previous prime is 65494657. The next prime is 65494739. The reversal of 65494728 is 82749456.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156103 + ... + 156521.

It is an arithmetic number, because the mean of its divisors is an integer number (2006550).

Almost surely, 2^65494728 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 65494728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96314400).

65494728 is an abundant number, since it is smaller than the sum of its proper divisors (127134072).

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

65494728 is a wasteful number, since it uses less digits than its factorization.

65494728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 604 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 65494728 is about 8092.8813163174. The cubic root of 65494728 is about 403.0900836533.

The spelling of 65494728 in words is "sixty-five million, four hundred ninety-four thousand, seven hundred twenty-eight".