80637216 has 96 divisors (see below), whose sum is σ = 243129600. Its totient is φ = 23143680.

The previous prime is 80637211. The next prime is 80637223. The reversal of 80637216 is 61273608.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (80637211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18055 + ... + 22073.

It is an arithmetic number, because the mean of its divisors is an integer number (2532600).

Almost surely, 2^80637216 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 80637216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121564800).

80637216 is an abundant number, since it is smaller than the sum of its proper divisors (162492384).

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

80637216 is a wasteful number, since it uses less digits than its factorization.

80637216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 80637216 is about 8979.8227153992. The cubic root of 80637216 is about 432.0279474375.

The spelling of 80637216 in words is "eighty million, six hundred thirty-seven thousand, two hundred sixteen".