65288860 has 96 divisors (see below), whose sum is σ = 174706560. Its totient is φ = 19934208.

The previous prime is 65288843. The next prime is 65288893. The reversal of 65288860 is 6888256.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52162 + ... + 53398.

It is an arithmetic number, because the mean of its divisors is an integer number (1819860).

Almost surely, 2^65288860 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 65288860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87353280).

65288860 is an abundant number, since it is smaller than the sum of its proper divisors (109417700).

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

65288860 is a wasteful number, since it uses less digits than its factorization.

65288860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 65288860 is about 8080.1522262888. The cubic root of 65288860 is about 402.6672992525.

The spelling of 65288860 in words is "sixty-five million, two hundred eighty-eight thousand, eight hundred sixty".