80862800 has 60 divisors (see below), whose sum is σ = 196101660. Its totient is φ = 32040960.

The previous prime is 80862781. The next prime is 80862809. The reversal of 80862800 is 826808.

It can be written as a sum of positive squares in 6 ways, for example, as 2999824 + 77862976 = 1732^2 + 8824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80862809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44306 + ... + 46094.

It is an arithmetic number, because the mean of its divisors is an integer number (3268361).

Almost surely, 2^80862800 is an apocalyptic number.

80862800 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 80862800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98050830).

80862800 is an abundant number, since it is smaller than the sum of its proper divisors (115238860).

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

80862800 is a wasteful number, since it uses less digits than its factorization.

80862800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 80862800 is about 8992.3745473596. The cubic root of 80862800 is about 432.4304408833.

The spelling of 80862800 in words is "eighty million, eight hundred sixty-two thousand, eight hundred".