80823220 has 24 divisors (see below), whose sum is σ = 169924608. Its totient is φ = 32292000.

The previous prime is 80823217. The next prime is 80823229. The reversal of 80823220 is 2232808.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80823229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21265 + ... + 24775.

It is an arithmetic number, because the mean of its divisors is an integer number (7080192).

Almost surely, 2^80823220 is an apocalyptic number.

It is an amenable number.

80823220 is an abundant number, since it is smaller than the sum of its proper divisors (89101388).

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

80823220 is a wasteful number, since it uses less digits than its factorization.

80823220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 80823220 is about 8990.1735244655. The cubic root of 80823220 is about 432.3598753074.

The spelling of 80823220 in words is "eighty million, eight hundred twenty-three thousand, two hundred twenty".