65385628 has 48 divisors (see below), whose sum is σ = 146006784. Its totient is φ = 24877440.

The previous prime is 65385613. The next prime is 65385641. The reversal of 65385628 is 82658356.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10776 + ... + 15712.

It is an arithmetic number, because the mean of its divisors is an integer number (3041808).

Almost surely, 2^65385628 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 65385628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73003392).

65385628 is an abundant number, since it is smaller than the sum of its proper divisors (80621156).

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

65385628 is a wasteful number, since it uses less digits than its factorization.

65385628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002 (or 5000 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 65385628 is about 8086.1380151467. The cubic root of 65385628 is about 402.8661390658.

The spelling of 65385628 in words is "sixty-five million, three hundred eighty-five thousand, six hundred twenty-eight".