80827020 has 72 divisors (see below), whose sum is σ = 246289680. Its totient is φ = 21456000.

The previous prime is 80827003. The next prime is 80827063. The reversal of 80827020 is 2072808.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 44286 + ... + 46074.

It is an arithmetic number, because the mean of its divisors is an integer number (3420690).

Almost surely, 2^80827020 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 80827020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123144840).

80827020 is an abundant number, since it is smaller than the sum of its proper divisors (165462660).

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

80827020 is a wasteful number, since it uses less digits than its factorization.

80827020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 80827020 is about 8990.3848638420. The cubic root of 80827020 is about 432.3666511728.

Adding to 80827020 its reverse (2072808), we get a palindrome (82899828).

The spelling of 80827020 in words is "eighty million, eight hundred twenty-seven thousand, twenty".