80897166 has 96 divisors (see below), whose sum is σ = 209664000. Its totient is φ = 22057920.

The previous prime is 80897137. The next prime is 80897183. The reversal of 80897166 is 66179808.

It is a happy number.

80897166 is nontrivially palindromic in base 5.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 542860 + ... + 543008.

It is an arithmetic number, because the mean of its divisors is an integer number (2184000).

Almost surely, 2^80897166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80897166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104832000).

80897166 is an abundant number, since it is smaller than the sum of its proper divisors (128766834).

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

80897166 is a wasteful number, since it uses less digits than its factorization.

80897166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 80897166 is about 8994.2851856054. The cubic root of 80897166 is about 432.4916919562.

The spelling of 80897166 in words is "eighty million, eight hundred ninety-seven thousand, one hundred sixty-six".