65005884 has 54 divisors (see below), whose sum is σ = 169882440. Its totient is φ = 20958480.

The previous prime is 65005873. The next prime is 65005901. The reversal of 65005884 is 48850056.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33657 + ... + 35535.

Almost surely, 2^65005884 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 65005884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84941220).

65005884 is an abundant number, since it is smaller than the sum of its proper divisors (104876556).

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

65005884 is a wasteful number, since it uses less digits than its factorization.

65005884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 65005884 is about 8062.6226502299. The cubic root of 65005884 is about 402.0847077751.

The spelling of 65005884 in words is "sixty-five million, five thousand, eight hundred eighty-four".