80823560 has 64 divisors (see below), whose sum is σ = 186624000. Its totient is φ = 31494400.

The previous prime is 80823553. The next prime is 80823563. The reversal of 80823560 is 6532808.

It is not an unprimeable number, because it can be changed into a prime (80823563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423065 + ... + 423255.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^80823560 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 80823560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93312000).

80823560 is an abundant number, since it is smaller than the sum of its proper divisors (105800440).

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

80823560 is a wasteful number, since it uses less digits than its factorization.

80823560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 80823560 is about 8990.1924339805. The cubic root of 80823560 is about 432.3604815777.

The spelling of 80823560 in words is "eighty million, eight hundred twenty-three thousand, five hundred sixty".