65884480 has 56 divisors (see below), whose sum is σ = 157752288. Its totient is φ = 26208768.

The previous prime is 65884477. The next prime is 65884493. The reversal of 65884480 is 8448856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72187 + ... + 73093.

Almost surely, 2^65884480 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 65884480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78876144).

65884480 is an abundant number, since it is smaller than the sum of its proper divisors (91867808).

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

65884480 is a wasteful number, since it uses less digits than its factorization.

65884480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 65884480 is about 8116.9255263308. The cubic root of 65884480 is about 403.8880845444. Note that the first 3 decimals are identical.

The spelling of 65884480 in words is "sixty-five million, eight hundred eighty-four thousand, four hundred eighty".