65871480 has 128 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 16445952.

The previous prime is 65871469. The next prime is 65871529. The reversal of 65871480 is 8417856.

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, 380674 + ... + 380846.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 2^65871480 is an apocalyptic number.

65871480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65871480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105235200).

65871480 is an abundant number, since it is smaller than the sum of its proper divisors (144598920).

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

65871480 is a wasteful number, since it uses less digits than its factorization.

65871480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 65871480 is about 8116.1246910086. The cubic root of 65871480 is about 403.8615183968.

The spelling of 65871480 in words is "sixty-five million, eight hundred seventy-one thousand, four hundred eighty".