80860512 has 48 divisors (see below), whose sum is σ = 213721200. Its totient is φ = 26767872.

The previous prime is 80860501. The next prime is 80860531. The reversal of 80860512 is 21506808.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 80860512.

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, 11478 + ... + 17130.

It is an arithmetic number, because the mean of its divisors is an integer number (4452525).

Almost surely, 2^80860512 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 80860512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106860600).

80860512 is an abundant number, since it is smaller than the sum of its proper divisors (132860688).

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

80860512 is a wasteful number, since it uses less digits than its factorization.

80860512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80860512 is about 8992.2473275594. The cubic root of 80860512 is about 432.4263623281.

The spelling of 80860512 in words is "eighty million, eight hundred sixty thousand, five hundred twelve".