80355858 has 48 divisors (see below), whose sum is σ = 178062528. Its totient is φ = 24156000.

The previous prime is 80355857. The next prime is 80355901. The reversal of 80355858 is 85855308.

It is not an unprimeable number, because it can be changed into a prime (80355851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109260 + ... + 109992.

It is an arithmetic number, because the mean of its divisors is an integer number (3709636).

Almost surely, 2^80355858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80355858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89031264).

80355858 is an abundant number, since it is smaller than the sum of its proper divisors (97706670).

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

80355858 is a wasteful number, since it uses less digits than its factorization.

80355858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 42.

The square root of 80355858 is about 8964.1429038141. The cubic root of 80355858 is about 431.5248870423.

The spelling of 80355858 in words is "eighty million, three hundred fifty-five thousand, eight hundred fifty-eight".