80858880 has 108 divisors (see below), whose sum is σ = 279803160. Its totient is φ = 21559296.

The previous prime is 80858879. The next prime is 80858887. The reversal of 80858880 is 8885808.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80858887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8011 + ... + 15029.

It is an arithmetic number, because the mean of its divisors is an integer number (2590770).

Almost surely, 2^80858880 is an apocalyptic number.

80858880 is a gapful number since it is divisible by the number (80) 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 80858880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139901580).

80858880 is an abundant number, since it is smaller than the sum of its proper divisors (198944280).

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

80858880 is a wasteful number, since it uses less digits than its factorization.

80858880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7046 (or 7029 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The square root of 80858880 is about 8992.1565822666. The cubic root of 80858880 is about 432.4234531018.

The spelling of 80858880 in words is "eighty million, eight hundred fifty-eight thousand, eight hundred eighty".